【17份】2019高考数学（文）优编增分练通用版：12＋4标准练分项练

《【17份】2019高考数学（文）优编增分练通用版：12＋4标准练分项练》由会员上传分享，免费在线阅读，更多相关内容在教育资源-天天文库。

[17௃2019ὃᦪᦻ
ᑖᵨ᱐12+4᪗ᑖ⚗20193ᨴ1[80ᑖ]12+4᪗1.................................................................................................................2[80ᑖ]12+4᪗2.................................................................................................................8[80ᑖ]12+4᪗3...............................................................................................................14[80ᑖ]12+4᪗4...............................................................................................................2112+4ᑖ⚗1ᔠᵨᵨ........................................2712+4ᑖ⚗2!"#$ᳮ&'...........................................3312+4ᑖ⚗3)ᦪ*+᪾-............................................4212+4ᑖ⚗4.☢ᔣ1ᦪᦻᓄ.........................................4912+4ᑖ⚗5345ᦪ6347........................................5712+4ᑖ⚗6ᦪᑡ.....................................................6712+4ᑖ⚗7ᭆ᳛.....................................................7412+4ᑖ⚗8;<;<ᫀ>............................................8012+4ᑖ⚗9?@AB...................................................8812+4ᑖ⚗10CDᙊ..................................................9612+4ᑖ⚗11ᙊ┵GD.................................................10312+4ᑖ⚗125ᦪḄ-IឋK........................................11212+4ᑖ⚗13Lᦪ...................................................120

1[80ᑖ]12+4᪗11.ᔠ/=62|/—3ஹ4<0},5={x|0qᎷ,-⌕ឋᡂ;.4.@ᨵᐵᦻCDEFᡃHIJK9LᛞᐳᢞP126QR$STUVL5ḄWLRᦪXYLRᦪZ[஻஻]ᦪ
Q$^LḄRᦪ⚔LḄ13`$ᑣᛞḄ^LᐳᨵR
A.2QB.3QC.26QD.27QᫀC+᪆⚔LᨵR0Q$^LᨵRḄQ$Rᦪ᪀ᡂbcᦪᑡ$஺9=13஺],ᵫ3$9Ḅ+m
3஺9=26.—2-=126,xW2,5.ghᦪx,yijklᩩ0,m-2P+2>0,ᑣz=-'+PḄᨬᜧ%
ஹx+y+220,144A.—yB.-2C.jD.4ᫀC+᪆᝞r▢tuᑖᡠv$w4Ḅxyz{|}ᒹ
$

22=+yᦋᑏy='+z,x0,6>0)ḄVᩩ¼½¾Tᚖ$⚔ᑮᩩ¼½ḄÁÂ1,ᑣ·¸Ḅᯖᑮᩩ¼½ḄÁÂ()A.2B.jC.2y[2D.4MᫀB6+᪆Ä·¸cFE£=1ḄVᩩ¼½¾Tᚖ$ᡠ¼½Çy=±x,ᡠa=b.Ä⚔ᑮᩩ¼½ḄÁÂ1,ᡠᔣ1,=1,

322ᡠ஻=6=$·¸CḄÇ5=1,ᡠ·¸Ḅᯖᑮᩩ¼½ḄÁÂh=y[2.8.ᦪ@X1$X2$…$Xio$2ḄÐᙳᦪ2,Çc1,ᑣᦪ@XI$X2$…$XioTÓÔÕᦪ@
A.᪵×ØB.Ù3XÚ×ØC.Ù3XÚ,×ØD.×Øឋ,xᑨÜᫀC+᪆Äᦪ@X”X2,…$ᑴ஺$2ḄÐᙳᦪ2,ᡠᦪ@X2,…$Þ
ḄÐᙳᦪ2,Äᦪ@ß$M$…$X1O$2ḄÇcI,Irio,,ᡠAEX,—2
-+2—2
-=1,11i=l10_ᡠâX,—2
2=11,/=1110ᡠᦪ@X|,…$X10ḄÇcã£2
2=1.L1/-IÄM>1,ᡠᦪ@ß$ᵯ$…$R0TÓÔÕᦪ@Ù3XÚ,×Ø.9.஺஻⊤vç᦮ᦪ஻ḄᡠᨵÄᦪ5ᨬᜧḄ᜻ᦪêᨬëḄ᜻ᦪḄbc5⚗$ᦪᑡíîïḄð஻⚗ñS஻$òóS”bÔ
2-IA.2"i—஻2B.2"7+?4”1öC.2"—nD.2"+஻2ᫀB+᪆ᵫ3$<஻Ꮤᦪ8$î=%,2<஻᜻ᦪ8$ù=ᵞ?Ä^n-1++-----'2ᡠSz.+j=a+a+a+a4-\----*■4"+Jl23=a\+a3+a-\---F4ᵪ1+32+஻4+஻6H-------Fa^\_522p+11+31+51+2"஺....ஹ—1----H2J+
ai+஻2+஺3H---------

4=1+2+3H----F2w+ai+a+^3H----H%஻_121+2'2ᓝ42"++5„,,21ᓽ%_1=$+4"+52-,ᡠ&52I=341+21+(-2+2"-2+~+*+2|+$21=2n~l+j-4n-'-j.10../ᱥ12=,ᑁ450Ḅᯖ89:1;/ᱥ18?1@A0B8ḄCᙶ᪗F3,\PQ\=^m,ᑣmI<A.4B.6C.8D.10PᫀCR+᪆TFU2=mx,ᡠ&ᯖ8ᑮX1ḄYZp=%,*P,஺ḄCᙶ᪗ᑖ\]X|,X2ᑣ_᳝=3,ᓽa+b=6.TF|P0|=1m,ᡠ&c1+c2+P=4ᓽ6+y=^w,Re4=8.11.fghij┵Ḅilm᝞mᡠoᐸBilmḄqஹrஹsᑖ\F2,1,1,ᑣtij┵᜜vᳫḄ⊤☢zFPᫀB

5R+᪆ᵫfgᩩ}~ilme,tij┵Ḅh⚔8hI¯ᡂḄᩩ}°᪵ᡠ&y=sinx+lnx0,ᡠ&%>0,ᡠ&᣸◀A,B.13.fga=l,2,"—1,6=2—½-2,?ᔣ¿a஻"ᑣ£ᦪᵨḄÁF.5答案O或-2R+᪆TFᔣ¿஺஻ᑖᡠ&2412—m=-2,ᡠ&4=0ᡈzn=|.14.Ä¢ÅÆÇḄÈÉ1B¡Ê>ᩩᑣ¡ÊḄ>ᩩÈÉ1FËhIῪiÉÇḄ>ῪḄᭆ᳛F

6PᫀIR+᪆Ä5ᩩÈÉ1B¡Ê2ᩩᐳᨵ10hÐÑÒ}ᐸB¡ÊḄ>ᩩÈÉ1FËhIῪiÉÇḄ>ῪḄᨵ5hᡠ&¡ÊḄ>ᩩÈÉ1FËhIῪiÉÇḄ>ῪḄᭆ᳛FÓ=g.15.ÔÕᦪ@=4/“X?1È

7[80ᑖ]12+4᪗21.ïᦪZ1=3+2i,Z|+z2=l+i,ᑣïᦪZrZ2I<A.-4-7iB.-2-iC.1+iD.14+5iPᫀAR+᪆᪷ô⚪öeZ2=l+i—3—2i=-2—i,ᡠ&z-Z2=(3+2i)•(—2—i)=-4-7i.2.ùᔠ/={x|xḄ>@29ABᙊCᙊ஺,DCDᙳ<ᑗ2ᑣHᙊ஺ᑁᢗKLAM2NMOᙠ▢RSᑖḄᭆ᳛(()A.12-8A/2B.3~2y/2C.8-5^2D.6-4^2[ᫀD+᪆]Bᙊ^@(r,ᑣᙊ஺Ḅ^@(r+ᖾᔆ2ᵫcdᭆeḄfg2Hᙊ஺ᑁᢗKLAM2NMOᙠ▢RSᑖḄᭆ᳛(h;ᐰk2=6—4B.ᦑ⌱D.224.opqrCsp-p=l(a>0,Z>>0)ḄᯖMᑮxyrḄz{|}ᐸ2ᑣpqrCḄ{᳛(()A.ᖾB.y/3C.⎅D.2yli[ᫀC+᪆ᵫ⚪46=2°,ᓽ2=4/,ᡠ,c?—=4/2e=4.5.ᦪJ(x)=2sin(2x+gḄ0ᔣ"(0>0)Aᓫ20LMḄᙶ

8᪗ᑮ¡ᩭḄ᳘¤ᙶ᪗¥¦§2ᡠ0ᐵ}>rx=E©ª2ᑣ᜛ḄᨬB(®§[ᫀC+᪆ᦪ/x
=2sin®2x+g
Ḅ0ᔣ᜛®᜛0
Aᓫ2ᑮ᜛=2sin®2x—29+£§,0LMḄᙶ᪗ᑮ¡ᩭḄ¤ᙶ᪗¥¦§2ᑮy=2sin®4x—2᜛+¯2ᡠ0ᐵ}>rx=°©ª2ᓽsing—2/=±1,ᑣ2᜛Lᓤ=%n+5,^=y+y,kZ,ᵫ᜛³0,´µ=L1,᜛ḄᨬB(¶2ᦑ⌱C.6.᝞0ᡠ1Ḅ·¸᪾02º»yḄᨬᜧ
®§A.3B.0C.15D.8[ᫀC+᪆½X=—3¾2y=3<½X=-2¾2y=0<½x=-1¾2y=-1°½x=0¾2y=0<½x=l¾2=3°½x=2¾2y=8°½x=3¾2y=\5x=4,¿À29ᡠ,yḄᨬᜧ(15.7.LAcdÁḄÂÃ0᝞0ᡠ12ᑣNcdÁḄÁÄ(®§

9IB*-2-*liŮƧÃ0Ç(µ)Ã0ÈÃ0A.2+ᐔB.1+TCC.2+2ᐔD.1+2ᐔ[ᫀA+᪆᪷ÂÃ0NcdÁᵫLAÊÁË^AᙊÌÍᔠÏᡂ,ᑣK=lXlX2+1x7tXl2X2=2+K.8.᝞0ᡠ12oÑrÒkB
Óᙠ☢஺ḄÕRḄ2Ö2ᑣ43C☢஺ᡠᡂḄ×
()A7_JBOA.60°B.45°C.30°D.120°[ᫀA+᪆N480ᓽ
Ñr48C☢aᡠᡂḄ×2ᙠRtØ40882AB=2BO,ᡠ,cosZABO=^,ᓽÙ480=60஺.ᦑ⌱A.9.ᙠ☢>×ᙶ᪗Ú8234>r/ḄÊ·(x-2yLB=0,ᙊCḄÊ·(f+J—4”L2y+3a2+1=05>0),ÛMÜᙠᙊCÝÛ2ÞÛMPᑮ>r/Ḅᨬᜧz{(2,ᑣᙊCḄ☢Ä(()A.ᐔᡈ(201-884)ᐔB.ᐔC.(201+88^5)71D.ᐔᡈ(201+8àáᐔ[ᫀB+᪆'(d+J—4ax—2^+3a2+1=0|â}(X—2஺)2+3-1)2—/=0,ᡠ,஺ߟ2஻)2+8—1)2=/,ᙊcḄᙊᙶ᪗((2al),^@(a.

10'(MÜ(ᙊCḄÛM,\2a-2~y[5\ᡠ,MÜᑮ>r/Ḅᨬᜧz{(\(-2)2+1-2,½¾,஺=]]—44,ᵫ}11—4ஹè<2éê2ᦑëì2½0ீ஺o¾2஺=1,îᔠ⚪2ᡠ,“=1,S'=ᐔ/=ᐔ.10.34y=/(x)
ñòᙠRḄ᜻ᦪ2ÞᙠR
ᓫõᦪ2ᦪg(x)=/(x-5).ᦪᑡ÷øù(|hᦪᑡ2Þfh¥(0,og(aD+g(a9)=02ᑣ“i+a2H---Fag|}()A.45B.15C.10D.0MᫀA6+᪆ᵫy=/(x)
ñòᙠRḄ᜻ᦪ2ÞᙠR
ᓫõᦪ24g(x)=/(x-5)ᐵ}(5,0)©ª2ÞᙠR
ᓫõᦪ2ýg(ai)+g(a9)=0,ᡠ,஺1+஺9=102ᓽḄ=5,᪷|hᦪᑡḄឋÿ
ᑁ+஺2+…+=9஺5=45.11.x=6ᦪ/)=(2—2")⁐Ḅ᩽
ᑣᦪᐔ0Ḅᨬ$%()A.(2+26)eஹ/2B.0C.(2—26)D.—eMᫀC6+᪆J(x)=(x2—2ax)ex,:(x)—(2x—2a)ev+(x2—2ax)ev[x2+2(1—a)x—2a]ex,ᵫ12
f(3)=0,5.2+2ᔾ72஻72ᖾ஺=0,:஺=1..'.J(x)—(x2—2x)ex,:/(x)=(x2-2)er,
;
(x)=(x2-2)et=0,=7ᙢᡈx=ᖾ
@x©(7ᖾ
3)B
f(x)<0,H.Iᦪx)ᙠ(.L,ᖾ)CDᦪ

11@xGF—"8,73HᡈxeFg
+8HB

FxHJ0,
ᦪ$HᙠF78,7⁐H
Fᖾ
+8HCLᦪ.M@xGF-8,0HUF2,+8HB,X2-2A-J0,.AxHJo,@xCF0,2HB
X2-2XQ0,yFxHQ0,.\/FXHminᙠxeF0,2HC
M@xwFo,6HB
ᦪ.ᓻHᓫZ⌴D
@xdFᖾ
2HB
ᦪ/FXHᓫZ⌴L
•\XxHmin=/F^H=F2-2ᖾH_.12.126J`0,ᦪaH=F3c/-1082%ᙠভ6fCḄg%h7/3fᑣb"jkFHA.1B.|C.2D.&MᫀD6+᪆ᓻH=F§o7log2X=J-log2XF“WxீbH,M/FXH=-A-^2Q0,ᡠwN=/FxHᙠha,6fCᓫZ⌴D
7FaH=3,f--3=loga,2ᡠw
m1ᓽজh=-k}2ᵫ_y=:+fy=log2XḄᨵ72
:+f=log2Xᨵ7:
J2জḄ7:
b=2ᡠw/=ᖾ."2x—yWO,13.2x,᜛ᩩQx—3y+520,ᑣz=-2x—yḄᨬ$%.ஹx20,Mᫀ74:+᪆᪷ᩩ^g
᝞▢ᑖᡠ¢F£¤¥H
¦§z=-2x—y¨4F1,2HB
z©ᨬ$74.

1214.ᙠRtA48Cª
NBA஺/,
¤N8CḄ«
AB=8,8c=10,ᑣ¬Ḅᨬ$%.®ᫀ716:+᪆w/%ᙶ᪗³
%x´
NC%y´
µ¶·☢¦¹ᙶ᪗º(ᶍ)
ᑣ/(0,0),8(8,0),C(0,6),¼஻(x,0),ᑣxW[0,8],.•.¬•■=(8-x,0>(—x,6)=-x(8—x)=x2-8x,.•.@x=4B
¬•½Ḅᨬ$%716.15.12aG^,¾¿n,sin(a+£)—sina=2sinacosᑣḄᨬᜧ%.®ᫀᖾ:+᪆Á%sin(a+/Q—sina=2sin6tcosÂ
ᡠwsinacos᜛+cosasin/?—sina=2sinacos/?,ᡠwcosasinQ7sinacos/?=sina,ᓽsinQ?-a)=sina,sin2asin2a2sinacosa3Mllᑣ7.7/Ã---~=----=----Å-----=2cosa.sin(y?—a)sinasinaÁ%J,ᡠw2cos[1,V2],ᡠwÆᔠḄᨬᜧ%È16.᝞
ᙠ·É¤Êª
BDLCD,ABA.BD,AB=CD=M,BD=yfi,NBDËÌᢚÎᩭ
ÊᡂÑÒ┵Ô788,Õ·☢·☢88,ÖB4,B,C,Dᙠ×7ᳫ☢C
ᑣÖᳫḄÙÚ%

13AABDU>CMᫀᖊ6+᪆Á%Z5_L8£H,Õ·☢4HD_L·☢BCD,ZBU·☢480,ᡠw461.·☢8C஺
᝞,ÑÒ┵4-8CDßᙠàÙª
áâ᜜äᳫå×
¼᜜äᳫæç%R,A/SV2V2+SV2V2+SV3V2_V7éê22
3K·[80ᑖ]12+4᪗31.12ᐰì஺={1,2,3,4},/={1,3},8={3},ᑣ(CM)n((M)jk()A.{1,2}B.{1,4}C.{2,3}D.{254}MᫀD6+᪆᪷⚪ñ஺஻={2,4},CuB={l,2,4},ᦑ(Côõ([ô={2,4}.2.12öᦪzz(3+4i)=3—4i,T%zḄᐳùöᦪ
ᑣ|T|jk()A.1B.2C.3D.4MᫀA._[g*/û3—4i(3—4i)(3—4i)6+᪆ᵫüýᵨz=3+4i=(3+4i)(3—4i)_-7_24i_724.=9+16=77ÿ

14—724—•••z=-X+XiIz3.᝞ᦪxi2…X”Ḅᙳᦪx,8!,ᑣ5$|+2,5&+2,…5x“+2Ḅᙳᦪ(ᑖ*+,A.T,82B.57+2,82C.5T+2,25X82D.T,25X822ᫀC4+᪆᪷ᙳᦪḄᭆ8ᐸᙳᦪ5ᡈ+2,25X82,ᦑ⌱C.4.=>?@A$ᨵC᪵EFG⚪IJᨵ᝕LᗐNOPQRSOᐳNUᓝWRXUOஹXZOஹXWOᡠN!(ᓝZRᑣXᓝOᡠNRᦪ+,A.9B.10C.11D.122ᫀB4+᪆_XEᜩNamRcXUᜩdeᜩfgEᜩhNdRᵫklm’741+2M=28,a\+d+m+4d+m+7d=15,4ma1=1,d—1,•XᓝOᡠNRᦪᵪ0=r+9d=10.5.kla=L9%Z>=logo,1.9,c=0.4k9,ᑣ+,4A.a>b>cB.b>c>aC.a>c>bD.c>a>b2ᫀc4+᪆Va=1.904>1.90=l,ft=logo.l.9c>b.446.᝞klḄ☢10,ᔣᑁᙢᥜ200⚩ᦪmᙠ▢᜜Ḅᦪ114⚩ᦪ▢ᑖḄ☢+,A.5.3C.4.7D.5.72ᫀB1144+᪆ᵫ¡ᐺᭆ£ᭆ᳛¥¦§¨©ª«ᭆ᳛¥¦mᙠ▢ᑖḄᭆ᳛1—¬Ḅ☢10,ᡠᵫ®¯ᭆ£ᭆ᳛¥¦m▢ᑖḄ☢10X஺E±=

154.3.7.²®¯³Ḅ´µ᝞ᡠ¶ᑣ®¯³Ḅ³+,A.1B.1C.gD.j2ᫀC4+᪆¸®¯³´¹┵ᐸ»¼᝞ᡠ¶,³/=^xgx2X2)X2=*8.klÁᦪÂx)=2017A+logOI7(A/X2+1+X)-2017r+3,ᑣᐵÇÈḄÉQ¦ÊE2Ë)+2¨>6Ḅ4Ì()A.(E8,1)B.(1,+°°)C.(1,2)D.(1,4)2ᫀA4+᪆ᵫ⚪Ílg(x)=2017'—2017-x+log2oi7(V?+i+x),g(—x)=2017r—2017A+log2017(A/-V2+1—X)=-2017r+2O17-x+log(jp=^),2017=-20l7x+2017-x-logoi7(yjx2+l+x),2g(-x)=-g(x),g(x)᜻ÁᦪÑᙠ(E8,+8)ÒᓫÔ⌴P•'Ög(l-2x)+3+g(x)+3>6,ᓽg(x)>g(2x—1),.\x>2x~1,.*.x6Ḅ4Ì+E8,1,.9.ᙠ᝞ᡠ¶ḄÙÚ᪾ÜÝÞᐭḄS=2,ÞḄS>2018,ᑣᑨâ᪾ᑁãᐭḄᩩ

16«å()A.i>9?2ᫀD4+᪆ÞᐭS=2,i=l,S—4—211,ᑣᦪ4Ḅ()A.(l3]

17C.^ln2—1,D.Q-l,e-1ᫀBfτ~Inx-2ax,Inx+᪆ᵫ)=->1,!2a+1v—j,"Inxri,1-Inx#g(x)=$ᑣg(x)=~--&00,(ᦪg(x)ᙠ(0,e)*ᓫ,⌴./&x>e'g'(x)<0,(ᦪg(x)ᙠ(e,+8)*ᓫ,⌴1ᡠ3&x=e'(ᦪg(x)᩽ᜧ67ᨬᜧᐸ:g(e),;,/(e)>lᡂ=.?:ᨵᨵ᦮ᦪ@"A)>1,ᙠeḄCDᨬ☠FeḄ᦮ᦪᑖH:2,3,g(2)=I=ln2?,g(3)=I=ln3§,(2/)6=23=8<9=32=(3/)6322<33,ᦑg(2)

18WᱥYḄᯖ^ᙶ᪗:(0,I).•.•Tᙊr+f=lMWᱥY/=uᨵ[\Ḅᯖ^F,W=2,ᓽ஺=8,ᑣWᱥYry:*2=8ybYry:|=-2,:}=4,ᵫWᱥYḄᑮbYḄ:4,ᓽy+2=4,ᓽ/^Ḅᙶ᪗y=2,^/ᙠWᱥY*x=±4,jk^4(4,2),/ᐵ;bYḄ^:8(4,-6),ᑣ|Bt|+\PO\=\PB\+\PO\^\OB\,ᓽ&஺P,8^ᐳY'ᨵᨬgᨬg:=W+(_6)2=^16+36==2."x+y—1W0,13.Sx,yᩩ¡,3x—y+l20,ᑣz=2x—3yḄᨬᜧ:ஹx-y—1W0,ᫀ4+᪆¤j¥¦§⊤©Ḅª☢¬᝞¯▢±²ᑖᡠ©(³´µ)¶ᔠ¸᪗(ᦪḄ¹!º»S¸᪗(ᦪᙠ^4(—1,—2)ᜐᨬᜧᐸᨬᜧ:Zmax=2X(-l)-3X(-2)=4.14.ᨵᵬஹÂஹÃஹ$ÄÅÆÇÈÉÊᐸËÌᨵÅÍᝄᨵ"ÏÐ|ÄÅÆÇᵬÑÒ“ᡃÕᨵÍᝄ”ÂÑÒ“ÃÍᝄ”ÃÑÒ“$Íᝄ”$ÑÒ“ᡃÕᨵÍᝄ”.ᙠ

193*×⚪ËÌᨵ"ÙÚÛ᪷Ý3*ḄᑨßÍᝄḄÆÇ.Mᫀᵬ6+᪆
ᵬÙÚÛᑣÚÛ⊤à:ᵬÒᡃáÍᝄ/ÂÒÃáÍᝄ/ÃÒ$áÍᝄ/$ÒᡃÍᝄ.âãäåÃஹ$æçᦑ┯é/
ÂÙÚÛᑣÚÛ⊤à:ᵬÒᡃÍᝄ/ÂÒÃÍᝄ/ÃÒ$áÍᝄ/$ÒᡃÍᝄ.LÌᨵ"Íᝄᦑ┯é/
ÃÙÚÛᑣÚÛ⊤à:ᵬÒᡃÍᝄ/ÂÒÃáÍᝄ/ÃÒ$Íᝄ/$ÒᡃÍᝄ.LÌᨵ"Íᝄᦑ┯é/
$ÙÚÛᑣÚÛ⊤à:ᵬÒᡃÍᝄ/ÂÒÃáÍᝄ/ÃÒ$áÍᝄ/$ÒᡃÕᨵÍᝄ.â'Íᝄ"ᦪÌᨵ:ᵬ.ᦑÚÛ.15.RSᔣa,6Ḅᜳí:î“=-1,஺=ï1,2ð,\b\=yf2,ᑣtan<9=.MᫀZ36+᪆ᵫRS»cos6=^=[\=Z^_ee[O,7t],ᡠ3sinO=yj1—cos2^=^^,ᡠ3tan0=----3.cos016.RSa,b,cᑖH┦íþ8cḄᑁ4,B,஺Ḅ6=2,4—

2067sin%—2cosC=sin/+2cos(5+;)'?=sin/+2|ஹ2cosA/sinAj=y[3cosA,ᡠ.0ீ'cos/Cᙶ,ᦑsinN—2cosCḄ7[80ᑖ]12+4᪗41.ᙠHI☢ᑁHᦪMNZ2PḄQᑖS;(2,1)NT0,1),ᑣUVW()Z2A.-l-2iB.-l+2iC.l-2iD.l+2i]ᫀC_+᪆ᵫHᦪ4NZ2PḄQᑖS/(2,1)N8(0,1),$Zi=2+i,Z2=i,2.abcᔠM={x|x\},ᑣ"ANVW()A.{x|01}={x|x>0},'QM={x|x

21abtanf«-^j=1tana—1_+᪆31+tana_$tana=2»
.cos%-sin%1—tan%.....1ஹஹ,339cos2a=cosa-sin~a=2-xߟr^-=~~~,z{ᑗ}ᐭcos2a=7.cosa+sina1+tana55.{┵48COḄ☢73,7E7CḄQᑣ.8EᡠᡂḄ7A.30°B.60°C.45°D.90°]ᫀB_+᪆⚔Qᚖ☢W{Q஺OE,y/2,{┵168Ḅ☢73,7஺=AB=L,AC=®R4="஺8=.,஺ᑓᙠI☢᳘஺ḄC.OE//PAOE^^PA,:.NOEBᓽ^_BEᡠᡂḄc,0E=*,ᙠRtAOffitanN0EB=%Ld,UE.VQ.ZOEB=60°.ᦑ⌱B.6.¡¢£¤ᔁ5ᖪ§¤¨©ª«⚪“¬ᨵᙊᚽᴿᕜ²1³´²³.«µ¶·]¸¹ºᓟMᓝº³.£¸¹ᕜ½¾¿.´¿ÀᓝºÁ”.ÃÄᡠÅḄᙊᚽᴿÆᙊÇÈḄ7“ᕜ½¾¿.´¿ÀᓝºÁ”.ÆŹᙊᚽᴿᙊÇḄ71/=ÉÊ☢ᙊḄᕜËḄIX´ᑣᵫÌÍÎ$ᙊᕜ᳛ᐔḄ7A.3B.3.1C.3.14D.3.2]ᫀA_+᪆ÐᙊÇḄ☢Ñ7ᔆeh,

22ᵫᙊÇḄÓÔ$V=nr2h.ᵫ⚪#br=^X27tr
2XA.ᡠ.n/h=tÊ2”yXh,_$ᐔ=3.7.Õbᔣ×0=3,-4
,|*|=2,m06=—5,ᑣᔣ×abḄᜳ7]ᫀD_+᪆ᵫ⚪#Íbcose=j^|i=T^=—xᡠ.ᔣ×஺'Ḅᜳ7,.8.abᦪᑡÚÛÜḄÝ஻⚗N7S”ßàᵪ=1,យ+ᓽ+1=2"+1,ᑣãVWA.1009B.1008C.2D.1]ᫀA_+᪆S2017=«I+te+^3)+(«4+^5)^-----1~(^2016+^2017)=(2X0+l)+(2X2+l)+(2X4+l)+-+(2X2016+1)(1+2X2016+1)X1009=A--------------2~-----------=2017X1009,,'-20?7=,009.3x—y—6W0,9.Ðx,yßàêëᩩí0,mî᪗lᦪz=ax+y3>0
Ḅᨬᜧ718,ᑣa.x20,y^O,Ḅ7A.3B.5C.7D.9]ᫀA_+᪆᪷óôVÔõ$ᑮÍ÷ªøùḄú÷ûᶍî᪗lᦪᓄ7᜛=—ar+z,ÿ
4,6
ᨵᨬᜧᐭᑮz=4a+6=18,a=3.10.ᓫḄ᝞ᡠ!"#Ḅ☢%&1,ᑣ(ᨬ)Ḅ*Ḅ)+&!#

23-!.#A.A/5B_V3C.2^2DV6/ᫀC+᪆᝞(&*┵/588,BC=2,CD=2,6&!"#Ḅ☢%&1,ᦑ!"#Ḅ8&1,ᵫ:;<=8஺=2@&ᨬ)*).11.Bᦪ40=᮱+/+!3஺+2EᙠGH!51,0
IᨵᨬJ,ᑣLᦪ஺ḄMOP!#A.(-1,BJ-I)/ᫀD+᪆ᵫᐔv
=e'+x2+3a+2
x,;!x
=e*+2x+34+2,,/BᦪT
=e*+x2+3a+2
xᙠGH!51,0
IᨵᨬJ,UBᦪHx
=e'+x2+3a+2
xᙠGH!51,0
Iᨵ᩽J,W/x
=e'+2x+3a+2ᙠGH-1,0
IᓫX⌴Z...e*+2x+3a+2=0ᙠGH!51,0
I[ᨵ\5.(—1)=e1—2+3a+2<0,ᵫ]^ᙠឋ`ᳮ;(0)=l+3a+2>0,5l0
Ḅ.ஹiᯖ92klm&ᙊg,|OFi|&opḄᙊḄᑗ
P&ᑗᑗ
rP&s5ᩩuv
wᑖᑣde
Ḅyg᳛&

24)BMCV3D.ᙶA.2/ᫀA+᪆஺PQBḄ,uv
cḄ&M,Q.OM஻F\P,,:NF1PF2hc,.•.NOM&.VF|(—c,0),&(c,0),5ᩩuv
f&y=%,ᑣc2ᑮuv
Ḅy&,2=67b+aQ.\PF\=2b.2ᙠRtAPgᵫ`ᳮ4c2=c2+4/>2,3c2=4(c2—a2),ᓽ஺2=4/,—2a,cᑣde
Ḅyg᳛e=^=2.13.᡻᝞ᡠḄ᪾SḄ&|i=LS=2Ib~~——|S=i,U~|Ii=i+lI/s/,I/ᫀ48+᪆1Ei=1,S=2,S=1X2=2,i=2>4ᡂ;2Ei=2,S=2,S=2X2=4,i=3>4ᡂ3Ei=3,S=4,S=3X4=12,i=4>4ᡂ

254Ei=4,S=12,S=4X12=48,=5>4ᡂ,ᦑSḄ&48.14.᝞ᙠw☢ᙶ᪗¦xQyBᦪª=$¬S+9#!᝞>0,0<9<ᐔ#Ḅ±²Ḅ4B,஺³´04+00=203,ᑣ8=.MᫀT6+᪆µ3X8+e=0,জ¸+9=ᐔ3XC+(P=2TI,⁐ᐔ592ᐔ5)#XR=~,XA=,Xr=.CD0)CO..-/3ᐔ52஺2ZpᵫOZ+OC=2O8,1sl5ijk,COCD9=¿._|_Y-4-1TTY15.Bᦪy=-----y=3sin5+1Ḅ±ᨵ஻Âᐸᙶ᪗ÄE&!Å,ᑘ#!2»2#…n!x“Ê#ᑣ.E,8+“#=________•=1Mᫀ46+᪆6&Bᦪy++1=x+/+1,y=3siny^+1ḄÏÐgᙳ&!0,1#.__,x2+x+l1Òy=fixl=-------=x+-+1,V=g(x)=3siny+1Ḅ±,ᵫ;ᐳᨵÖÂ×ᐵÙ!0,1#ÏÐ,X|+X)=X2+X3=O,᜛1+᜛4=%+&=2,4ᦑ.Z(x,+?)=4.1=\16.`ÞᙠRIḄBᦪ᜜#P᜻Bᦪ׳´â3—ä=g#/1#=3,ᦪᑡæ&ç³´

26“1=1×è=஻3.+1—%)(஻eN*),ᑣ_/(Ḅ6)ᓝìḄ7)=.Mᫀ536+᪆6&Bᦪ᜜)P᜻Bᦪᡠlî-x)=5/(x),ï6&ì3—x)=y(x),ᡠl/(3—x)=-/(—x),ᡠlæ3+x)=—")ᓽJ(x+6)=Hx),ᡠl/(X)Pl6&ᕜóḄᕜóBᦪ.ᵫa„—n(a„+i-(/„)»ᓽ("+1)஺“=஻஺"+],a+1/?+1n;a„~nQ”஺஻-1஺2஻2ᑣan,•...öan~\஺஻-2஺஻-301nn—1n522=hkh—Txin,ᓽa„=n,“GN,ᡠl“36=36,஺37=37.ï6&ᜧ-1)=3,Þ0)=0,ᡠl/!Ḅ6#+/!஺37#=/!0#+./!1#12+4ᑖ⚗1ᔠᵨᵨ1.!2018•úû〉ýឋὃÿ
ᐰU=Z,4={0,1,2,3},8={x|f=3x},ᑣA.{1,3}B.{152}C.{0,3}D.{3}MᫀB+᪆ᵫ⚪$%8={xM=3x}={0,3},.•./n*+={i,2}.2.2018•᧎.〉0ឋ23
ᔠ/={x*—4x—3W0},S={x£N|-l

27?ᫀA+᪆8={xCN|—lᡝ”z“a>6>0”Ḅ()A.ᐙᑖH|⌕ᩩ~B.|⌕Hᐙᑖᩩ~C.ᐙ⌕ᩩ~D.HᐙᑖH|⌕ᩩ~?ᫀB+᪆ᵫa>6>0,%>/ᡂSJ᝞a=—2,b——1,abு/,ᑣa>h>0HᡂSJᡠ“ab>஻”z“0>0”Ḅ|⌕Hᐙᑖᩩ~Jᦑ⌱B.5.(2018•ᓭḕ□PFpq)
ᔠ/={},2={My=ln(x-2?)},ᑣ▾஺8)()A.[0,1)B.(-8,O)u+8)C.(P8,0]UIJ+8)?ᫀc+᪆A=[0,+°°),8=(0,ᦑ4n8=(0

28ᡠ(R(zn8)=(—8,O]UIJ+8)6.ᑡ¢⚪FJᎷ¢⚪z()A.Vx^R,ev>0B.§¨eR,2X°>xoC.a+/>=0Ḅᐙ⌕ᩩ~zA=P1D.a>l,6>1zab>lḄᐙᑖH|⌕ᩩ~MᫀC6+᪆ªA,᪷lᢣᦪᦪy=e'Ḅឋ¯KJe'O°ᡂSJᦑA±²VªB,³x0=l,ᑣ2ஹ|2,ᦑB±²VªC,µ஺=b=0,¶·¸$¹JᦑC┯»JsᎷ¢⚪VªD,᪷lHIḄឋ¯K%c¼1,6>1dJ|ᨵ½>1,¾HᡂSJᦑD±².7.(2018•¿À¯2){2O18}U4{2018,2019,2020}ḄᔠÂḄÃᦪs()A.1B.2C.3D.4MᫀC6+᪆ᵫ⚪$J%/={2018}ᡈ/={2018,2019}ᡈ/={2018,2020}.ᦑ⌱C.8.(2018•ÅÆḕᭊÈFpq)ÉᔠZ={x|x2—6x-7<0},8={x|xÊa},Ëᨵ☢Íâ⚪PyBaGR,AAB=0VpQµa=0,ᑣZU8=(-7,+8)V2P3QµCR8=(—8,2),ᑣP4QµaW—1,ᑣNGAᐸFᡠᨵḄТ⚪s()A.PipP4B.P1pp,p34c.Pl,P3D.Pipp,P42MᫀB6+᪆ᵫ⚪$K%Z=(—1,7),ᑣca27dJ/08=0,ᡠ¢⚪pi±²Vc”=0dJ5=[0,+°°),ᑣ48=(-1,+8),ᡠ¢⚪P2┯»VµÓÔ=(-8,2),ᑣ஺=2~,ᡠ¢⚪P3±²VcaW-ldJ/=8ᡂSJᡠ¢⚪Ḅ±².

299.(2018•Ö×pq)ᑡᔜÙ¢⚪FJ“'pVq'sÐஹ'p'dsᎷஹ'ಟÛsДḄz()A.pᙠݹÞᑁzàᦪVq,/(x)=e*+ersᏔᦪB.pQVxGR,ᙳᨵf+x+120VqQx>lzx>2ᡂSḄᐙᑖH|⌕ᩩ~C.pQx+-Ḅᨬäåz6VqQæe/3x+4y+6=0çᙊ(X—3+é=25ê%Ḅëìs322D.p-.íᱥe/=8xḄᯖhᙶ᪗z(2,0)Vòóôᙊõ+]=1ḄöᯖhḄᨬ÷Ḅëìz3?ᫀB+᪆A.y=!ᙠ(-8,0)ù(0,+8)gᑖCzàᦪJᑣ¢⚪PzᎷ¢⚪JúzТ⚪JᑣzᎷ¢⚪JHᩩ~.B.ᑨCI/=1-4=P3<0,ᑣX/xGR,ᙳᨵy+x+lNOᡂSJᓽpzТ⚪Jx>lzx>2ᡂSḄ|⌕Hᐙᑖᩩ~JᓽqzᎷ¢⚪Jᑣ“'pVq'sÐஹ'pMq'sᎷஹWsДJᦑB±².9C.cxvOdJx+1ḄᨬäåHz6,ᑣpzᎷ¢⚪Jᙊ¼ᑮæeḄþÿd==ᘊ=3,ᑣ/=2425-9=8,ᑣqᎷ⚪ᑣpVq,y3ᓝ4JpAgᎷ⚪ᩩ.D.ᱥ=8%Ḅᯖᙶ᪗(2,0),ᑣp⚪ᙊḄᯖX=-1!/=#ᑣ$%&ᑣᨬ(Ḅ92=3,ᓽq⚪ᑣ^4Ꮇ⚪ᩩ.10.(2018•⊝,-ᔁ/Ẇᔁ)23a>0,⚪p45ᦪ/(x)=lg3?+2x+3)Ḅ78R,⚪qQ5ᦪg(x)=x+Wᙠ:;(1,+8)ᑁᓫ/⌴A.B(^p)/\q⚪ᑣCᦪ஺ḄE7G()IᫀDK+᪆ᵫ⚪N5ᦪ7(O)=P(Q2+2O+3)Ḅ78R,஻>0,ᦑ/=4—12a20,KT

30ᦑOvawg,ᓽp4OQW/Ba>0,g^x`=x+2ᙠ:;^1,+8`ᑁᓫ/⌴Aᓽg^O`=1c᜛O0ᙠ:;^1,+8`ᑁឤᡂgᓽᙠ:;^1,+8`ᑁឤᡂgKT04<1,f1a>T3.1lm.`n4⚪ᡠppᎷ⚪4⚪ᓽJTs/Wl,ᦑ⌱[0b,ᑣ2aA⚪B,"\/஺^0,+8`,5ᦪ>=/ᙠ8ᑁᓫ/⌴A”Ḅᔲ“¡஻0¢^0,+8`,5ᦪs=£ᙠ8ᑁᓫ/⌴A”.᝞஺=3!5ᦪ᜛=@>ᙠR§ᓫ/⌴¨B⚪C,l“ᐔ5ᦪ^=$«OḄcᕜ”Ꮇ⚪”2ᐔ5ᦪO=4112ᜩḄcᕜ”⚪ᡠpC⚪D,ᓃ2+/=0"=>“{=0"®¯ᡂgl°±2+=0”“9=0”Ḅᐙᑖ⌕ᩩDᎷ⚪.*ᓝᡝ4,12.^2018-ᑁℳ¸⎎º᧡¼½¾}~`¿ÀÁÂ,3Oc27O6,⊤ÆḄ:8஺஺Ḅx—y^4ᙶ᪗^Çᔊ.ᨵ☢Ê⚪4PiQXfP^Q,yWOP2QqPRQ,Ëcy22P34\/P£஺p4-¡$^`£Q,2^0-ᑣ=]ᐸ{Ḅ⚪^`A.PlpP2B.P1pp3

31c.P2p^D.P3,P4IᫀAK+᪆᪷ÒÀÁÂÓÔÕÖ8᝞×▢ÙÚᑖ(ÛÜÝ)ᡠÆ.ᵫ×ÕTyWO,ᦑPlÞßP3┯áâZ=%—y,ᓽy=$cz,ᵫ×ÕTãzäå(4,0)!ãᙠyæ§Ḅçèᨬᜧ°!zᨬêᑣZmin=3X4=2,ᦑP2ÞßP4┯á.13.B⚪ëc2xo+஻WO”Ꮇ⚪ᑣìḄE7G.Iᫀ(1+8)K+᪆l⚪"mx()GR,/c2xo+mWO"Ꮇ⚪ᡠpX/xWR,x2-2x+m
0⚪ᓽ4=4—4஻70,ᡠpì1.14.23p4x2a,qQx2—2x—320,Bp᜛Ḅᐙᑖ⌕ᩩᑣCᦪ஺ḄE7GIᫀ3,+8)K+᪆ᵫX2—2x—3^0,TxW—1ᡈÇ23,TpsqḄᐙᑖ⌕ᩩᑣ{ê?஺}{x|xW—1ᡈx23},ᡠp஻23.15.(2018•§ðñ▨/Ẇ)óôᔠ%=ös=(^7+1)(x-l)+(H-l)(x-2),BN=",ᑣCᦪmḄE7G.Iᫀ(c1,0)K+᪆♦.•71/=ss=(ö,xWR4=(0,+8),NUM,y=(Çᱏ+l)(x—1)+(1ìI-l)(x—2)ᙠø,2)§ឤÞó᜜)=(;■+l)(x-l)+(H-l)(x-2),

32f/^l`>0,pf>°f-l<o,஻ÿj+i>o,ெ>1ᡈ஻?<0,ᓽᦪ”Ḅ-1,0.16.!M#ᔠ%12,3,--241)"WN*,./2Ḅ012#34xd"7ᨵ2AxCM;<=ᩩ?Ḅ#ᔠMḄ@ᦪABBᑣB2=Eᡃk
=.Fᫀ32k-1H+᪆J1,2,2k-\ᑖALM1N2.1,2N2k—2,....,k~\Nk+\,BᓫPMQMRḄS@ᦪTUV7WXᡈV7YWX@<=ᩩ?Ḅ#ᔠQMWXᡈYWX"ᐳS[\]ᡠ_MḄ`aឋᨵ2T᣸◀@1#ᑣ`aឋA2*-1,ᓽ//=2"-1,/2=3,ᦑB2=3,12+4ᑖ⚗2!"#$ᳮ&'1.2018•ᓅklmnopq!x*>0,ᑣ•11A.>B.xyC.cosx>cosyD.ln(x+l)>ln(^+1)FᫀDH+᪆{A4x>y>07E<E_|cosx}cosyḄᜧᐵYᡠ_`᣸◀⌱⚗A,B,C.2.᝞ᐗRᡠᡂḄ@᯿@ᕈ¡¢ᩭḄFᫀAH+᪆¤¥¦ḄS§¨©ᢥ⌮7┐ᔣ¯§ᦑ@ᕈ¡¢ᩭḄ

33A,ᦑ⌱A.x—y+220,3.2018•°±²³q!ᦪx<=06>0
Æᑖᙊ2x+4yf=0,äå+/ḄᨬAA.2ᖾB.23+272D.3+2LcFᫀCH+᪆Jx2+y2—2x+4y=0ᓄAx—1Ã+ç+2
2=5,{AÁÂ/âox—"=2Æᑖᙊf+J—2x+4y=0,ᡠ_஺+26=2,éê>0,6>0,ë+*/+2ì+%=í+ᑨïð43ñ4ò=*ᓽ”=ó67ôõ

34x—2y+l20,5.2018•öᜧ÷øὃὶúopáᦪx,y<=YôûMᑣ/2+üḄx^O,A஺2B.[0,2]C.1,/D.[0,ýFᫀBH+᪆þ¢`¸¹᝞▢»¼ᑖᡠ½¾¿À/+”Ḅÿ
▢ᑁḄᑮḄḄᯠ஺ᨬ1,1
ᨬᜧ,ᦑ+Ḅ"஺2].6.#$%ᦪx,y'(,yW2x—1,᝞*+᪗-ᦪz=x-yḄᨬ.1,ᑣ%ᦪ123
A.7B.5C.4D.14ᫀB6+᪆8ᑴ:2;<⊤>Ḅ☢@A᝞B▢Cᑖᡠ>FGHI,y—2x~l,ὶKLMN,OPQᙶ᪗y——x+m,ᵫ+᪗-ᦪḄT
O$+᪗-ᦪᙠ/ᜐPᨬ,X+12m-1ᡠY~—-=—τ*6_1=5.7.ᨵabcἠA,B,C,28ecfḄᢝᨵhi᝞jklecfmnᢝᨵᐸp.bcἠᙠ:ᢝᨵ/cἠḄqpᢝᨵ8cἠḄqᦪᢝᨵCcἠḄqᦪḄ2r.ᙠᢝᨵcἠḄqptᢝᨵ4cἠḄqᦪu◀wᢝᨵ“cἠ᜜z{|ᢝᨵᐸ}cἠḄqᦪ~1.ᙠtᢝᨵ.bcἠḄqpᨵ.ᢝᨵZcἠ.ᑣtᢝᨵ8cἠḄcfqᦪI

35A.7B.6C.5D.4MᫀA6+᪆tᢝᨵZcἠḄqᦪX(᝞Bᡠ>),ᑣᢝᨵAcἠ|ᢝᨵᐸ}cἠḄqᦪX-l(Bpd+e+/Ḅ)tᢝᨵ.bcἠḄqpᨵ.ᢝᨵ/cἠᑣtᢝᨵw8ᡈCcἠḄqᦪBpb+cCᑖ).Ꮇtz{ᢝᨵw8CcἠḄqᦪa(᝞Bᡠ>)X+X-l+X+a=28,ᓽ3X+a=29,ᑣXḄO9,8,7,6,5,4,3,2,1.Ḅa2,5,8,11,14,17,20,23,26.ᢝᨵ4cἠḄcfpᢝᨵBcἠḄqᦪᢝᨵCcἠqᦪḄ2rP6+a=2(c+a),ᓽX—a=3c,ᦑX=8,a=5{'(⚪
ᦑc=l,6=7,ᦑtᢝᨵ8cἠḄcfqᦪ7,ᦑ⌱A..y+320,8.(2018ᜧ▬p)(x,ᑓ'(¡ᩩ£(x—5y—1W0,¤x^Z,[3x+y-3W0,yez,ᑣ¥᪵Ḅᐳᨵ()A.12¨B.11¨C.10¨D.9¨MᫀAx—y+3^0,6+᪆©ªx-5y—lW0,⊤>ḄO«A(FGH)ᵫBO$.3x+y—3W0'(xGZ,ySZḄ(x,y)ᨵ(.4,-1),(-3,0),(-2,1),(-2,0),(-1,0),(-1,1),(-1,2),(0,0),(0,1),(0,2),(0,3),(1,0),ᐳ12¨.9.¬T®ᔁ2ḄT°ᦪ±(YT±Ẇ³°ᦪ´⚪)ᡂw¶·¸ᦪ¹ᜐᳮ´⚪

36Ḅ»⌕½¾¿À¥.ᳮÁ~Ḅ°ᦪḄÂᳮᡈÃᳮÄÅ¿ÀBÆ%ÇÈÉÊËÌÍÈÉ.Çᨵ᝞Bᡠ>BÆÎᙠᙊOÑCᙠLÓ48Ѥ4C=a,BC=b,ᑣ×BÆOYØᡂḄÌÍÈÉ()FA^y[ab(a>0,b>0)B.a2+b2^2ah(a>0,b>0)C,b>0)a-hb//+4(஻>0,b>0)4ᫀD6+᪆ᵫ/C=a,BC=b,OPᙊ஺ḄÓ/=ß-a~\~ba-hàOC=OB-BC=~^—,ᑣFC2=0(^+OF2-+=~2~944á᪷¾⚪B$ãOWFC,ᓽßWæ¤ç஺=6{2é.ᦑ⌱D.x—y20,10.æ$%ᦪx,j'(¡ᩩ£Ñ+2yW4,᝞*+᪗-ᦪz=x+ᓽḄᨬᜧᑣ3.2yW2,%ᦪaḄ()A.3B.-yஹ1411C.3ᡈòD.3ᡈ.«4ᫀD6+᪆ᐜ©ªMឋ¡ᩩ£ᡠ⊤>ḄO«A(FGH)஺=0{:'(⚪
ᦑ஺W0.+᪗-ᦪᓄy=—%+,a>0{.]<0

37n?(-2,-2)(1).3<.JvO,ᓽ{ᨬû6(z=T+ga=஻=3,'(Q2ÿ(2)!v—ᓽ0<஻<2ᨬB(3,3),z=3+%=0<32,47<0-->0,(3)0<ᓽ2ᨬC(—2,—2),z=-2—2«=y,a=—y,a<—2(4))ᧅᓽ2<0ᨬ8(3,,z=3+1a=y,஻=ᕈ-24<0,.012ᦪaḄ53ᡈ,ᦑ⌱D.11.(2018•;ᓭḕᓭ□?@ABCD)EFGᦪ./(x)=x2+/>x+cḄKLxMNOḄPᙶ᪗ᑖTX”X2W0VXF1VX2V2,ᑣ6+2cḄ\5^_()A.(-2,-1)B.(-4,-2)C.(-4,-1)D.(-2,1)aᫀD+᪆ᵫGᦪ/(x)=f+bx+cḄKLXMNOḄPᙶ᪗ᑖTX1X2W00,ᑣel)=b+c+lீO,jz=6+2c,k2)=26+஺+4>0,mnopᩩrᡠ⊤uḄv☢xy᝞K(▢|}ᑖ)ᡠu(~)

38z=h+2cOB᪗Gᦪz=h+2c\ᨬ5+c+1=0,ᵫெ26+஺+4=0,4—3,2,Zmax=—3+22=1,k=0,ᵫெ2b+c+4=0,8—2,0,Zmin=-2+2X0=—2,ᡠ8+2cḄ\5^_-2,1.111Q12.2018•ᜩ;ᓅxCDᦪ஻8[+]=1,ᑣ+Ḅᨬ5A.1B.6C.9D.16MᫀB6+᪆•.•ᦪa,65+R1^7>0,a>l.a-I¦ᳮb>l.•..ᔡ+-7277=%+93-122ஹ/9“1ᓰ=6,a-li4W¬9-1=-4,ᓽ஺=®¯,ᡂ±.7a~1319—r+v_^Ḅᨬ56.a—\b-1%—y+220,13.2018•1⛸CDx,yopᩩr2x+y—3W0,ᑣ¶Ḅᨬ52Mᫀf0-y+220,6+᪆¸nx,yopᩩr1x+y—3W0,Ḅ¹y᝞K▢|}ᑖᡠu~.

39ºḄ»¼½¹yᑁḄ¿OP(x,ᔊÁO஺(2,—1)ÂÃḄÄ᳛,PÆÇ2(—1,1)ÈÃÉ0ḄÄ᳛ᨬᜧ,...1+1ᦇmax=_]+2=2,PÆÇ8(1,1)ÈÃÉ஺ḄÄ᳛ᨬ,Ëmin=[τ2=Ì2x-y<2,Wz=mx+ny(m>Q,Í0)Ḅᨬᜧ54,É20,ᑣ5+3Ḅᨬ5-aᫀ2+᪆mn¯ÎÏ⊤uḄ¹y᝞K▢|}ᑖᡠu(~).ᵫ¹yF¹yᑁḄO(x,y)ᙳx20,y^O.ᡠ⌕Òz=mx+஻y(஻z>0,஻>0)ᨬᜧÓ◤xᨬᜧyᨬᜧᓽᓽᙠO4ᜐ\ᨬᜧ5.y=x,ὶ±4(2,2).y=2x~2,ᡠᨵ2᪷+2஻=4,ᓽ஻?+஻=2.—+-=z(w+/7)f~+^)=zf1+~e'+1)*X(2+2)=2.mnnJ2

40m72v)W¬Ü=஻=1+[\ᨬ52.15.(2018ÝÞßẆ)EFGᦪ,/(x)=2x—sinx,2ᦪá6/(â+/(26—1)=0,ãä+

414-6aᫀ9+4ᙢ+᪆æx=2—cosx>0,é-x=-2x+sinx=—/x,ᡠGᦪéxᓫß⌴ìḄ᜻Gᦪæᵫ/3+/26—1=0,ᡠa=l-26,a+2b=1,W¬~~b=4v\¯,.16.2018•îïðñᑖò»¼B_óôᑣ»¼ò᝱Ẇö÷LḄ»¼B.ᑖòḄ᜜⊤ù᪀᩽üᩖþᐸᑁ
ᓾᨵḄ.ᦪᑖḄᡂḄᓽ--"⌴$Ḅ%✄'(.)☢ᡃ,ᵨᑖḄ.ᩭ0ᑮ'ᑡ3᝞31,78Ḅ9:;a,ᙠ78/IBABCC,D,wx4C=DB=%B,FCD;Hᙠ78Z8ḄKLMHᯠOPᣵ78CZR,0ᑮ32TḄ3UV32TḄᨬḄ78EYKZ[Ḅ\]0ᑮ33TḄ3U_`abᡃ,c0ᑮdF)'ᑡ3efg஻3i31;g13RTḄᡠᨵ789Ḅk;S”nopᨵᐵᦪᑡrSJḄtu⚪eজᦪᑡrS,xyzᦪᑡUঝᦪᑡrS,x⌴|ᦪᑡUঞ~ᙠᨬḄLᦪa,0VḄL᦮ᦪ஻ᨵS,,>2018Uট~ᙠᨬᜧḄLᦪa,0VḄL᦮ᦪ஻ᨵS“<2018.ᐸTu⚪.iᑏpᡠᨵu⚪ḄRᫀঝট+᪆ᵫ⚪031TḄ78;a,&=a,

4232TḄLMHḄH9;ᐰS2=Si+gx4=&+2a,33TḄᨬLMHḄH9;S3=$2+4X4=82+஺,34TḄᨬLMHḄH9;¡OS4=Ss+gX4=83+5,ᵫ`ab5”$“-1=ᓲi஻¦2R,ᓽr£x;⌴|ᦪᑡ¨yzᦪᑡᓽজ┯ªঝL«U¬;a=3+6—6R+6-$2R+…+ম-S“7R²S[=஻<5a,ᡠF~ᙠᨬᜧḄLᦪ஺=³0VḄL᦮ᦪ஻ᨵS.<2018,ᓽটL«ঞ┯ª.12+4ᑖ⚗3)ᦪ*+᪾-1—i1.i2018•ᜩ¶·¸¹º»Ri¼ᦪᓫ¾¿ᦪ)ᙠ¿À☢VÁḄC¾iRA.gÃ▲B.gÆÃ▲C.gÅÃ▲gtÃ▲MᫀCᡠF¿ᦪ1iVÁḄCi1,1RᙠgÅÃ▲.

432.2018•ÇȺ»Rᙠ᝞3ᡠÉḄ¿À☢ᑁ¿ᦪz=-j—VÁḄC;iRA.C/B.yBC.yCD.C஺ᫀDᙠ¿À☢ᑁVÁCḄᙶ᪗;3,-2
,ÌÍ3ÃVÁC;CD3.2018ÎϺ»RÐÑi¼ᦪᓫ¾,¿ᦪzÒÓz—2i=l+zi,ᑣ|z|y
ᫀB«IG,+᪆ᵫ⚪0z—zi=l+2i,ᑣz=_j1—1(-1)U+32V10ᡠFÕ=4.2018•Ö׺»RØᨵ)☢tu⚪ePiÙ¿ᦪzÒÓz=z,ᑣzCRP2Ù¿ᦪz”Z2ÒÓ[=%|ᑣZ|=Z2ᡈZ1=-Z2P3Ù¿ᦪZ[=Z2>ᑣZrZ2WRP4QÙ¿ᦪZ”Z2ÒÓZ|+Z2ÝR,ᑣZ|dR,Z26R,ᐸTḄu⚪;iRA.PlpP3B.P2,P4C.P2,P3D.pipP4ᫀA+᪆ᵫ2="Ñ¿ᦪḄ¼
;0,ᡠFᨵZWR,ßà0u⚪Uᵫ¿ᦪḄºḄ

44áâÑP2Ꮇu⚪UᵫZ1=Z2,ÑäZ2å;ᐳç¿ᦪᡠFP3u⚪U¿ᦪZ”Z2ÒÓZ|+Z2@R,èéêëB¿ᦪḄ¼
å;Z%ᦪᡠF04Ꮇu⚪.5—5.2018•ìᓭḕï□ñgTº»RòÑi;¼ᦪᓫ¾Ù¿ᦪzÒÓóô=z-i,ᑣzyiRA.1+iB.-1+iC.l-2iD.l+2iᫀA5"+᪆_⚪0z=]+2j+i=1—2i+i=1—i,ᦑz=l+i.6.2018᧎ë÷øR᡻ú᝞3ᡠÉḄ᪾3ᑣüpḄ஺yiR/üpa/osA.6B.6.25C.6.5D.6.8ᫀA9+1一=o"+᪆᡻ú᪾30Q113gþ᡻úÿ
k=2,6=2+]=5~ᩩb,ᑣ஻=9᡻
k=3,b=3+]=6,ᩩᑣ஺=691᡻
k=4,6=4+=6ᩩb.ᡠ஺=6.7.2018᡻᝞ᡠ!Ḅ#$᪾᝞&ᐭḄ(஻=0,5=0,Ḅ)&(7,ᑣᑨ'᪾“”+,-ᐭ.

45&Nஹs/,,=,+lS=S+ᡡS“+kII7QC.S>G?D.S>§?o3ᫀc8+᪆ᵫ⚪=>?@)&An,ᑣB#$᪾ḄCD(EF$=H+2+…+1K{|3("+l)(஻+2)ḄP'R⚗TU>?S=1XY=ᖛ஻ᓝ2஻ᓝ2+8~)&A஻=7,ᑣᨬ^T?ḄS=+2-9)ᔠ⌱⚗>aᑨc᪾“+,-ᐭef.8.(2018ijkẆ)mnop€r=3t+15vw6Ayᦪᓫ|)(ᵫ℉~ᦪmnḄᢣᦪᦪ᡽ᜧᑮᦪᦪUᢣᦪᦪḄᐵᙠᦪᓰᨵ⌕Ḅᙢ|A“ᦪ+Ḅᜩ᫑”.᪷¢mnop@e3⊤!Ḅᦪ¥Az,ᑣz-(l+2i)ḄPA()A.—2+iB.—2—iC.2+iD.2-i3ᫀAn.—1ITIT8+᪆ᵫ⚪=?z=e2=cos5+isiny=i,ᡠz(l+2i)=i(l+2i)=-2+i.9.(2018•²ᙥ´µ)@ᦪzi=l+i,Z2=l—i,ᑣ·ᑡ)┯ºḄ(()A.zs(»ᦪB.?(½yᦪC¾z¿|=2▂D.zf+z2=4i

463ᫀD8+᪆zrZ2=(l+i)(l—i)=1—Å=2,(»ᦪᦑAÇÈz\1+i1+2i+i2.,.~~~\"=5—i>TC½yᦪᦑBÇÈZ21-12|zf|=l(l+i)4|=|[(l+i)2]>l(2i)2|=4,2Ḅ=2|(1—Î=2|—2i|=4,ᦑCÇÈ,4+^=(l+i)2+(l-i)2=2+2i2=0,ᡠDÇÈ.10.(2018•Ð⛸´µ)ᙠ᝞ᡠ!Ḅ#$᪾+@/•ḄP(3,ᑣᐭxḄÔPÖ()/lAx//lmi/A.(3,+°°)B.(3,7]C.(7,+8)D.(7,19]3ᫀB8+᪆´µ#$ḄØ>?Ùi=lÚ3x-2<55,8?x&19;Ùi=2Ú3(3x-2)—2W55,8?xW7Ùi=3Ú3(9x-8)-2>55,8?x>3.ᑨc᪾ᑁḄᩩ⌨iḄPA3.>?3

47iXs+a,(1—l)Xs+©A.s=:iCஹ.(Ll)Xs+a,.iXs+ajD.si~1~i-l3ᫀB8+᪆í#$Ḅîᵨ(TQ],஺2,…஺஻ḄæᙳᦪᵫðX᡻ÚḄñSòPA0,EᦪñA1,óôA1,ᑭᵨ)᪀÷øùḄúû?᡻᪾12.2018•üᓅḕ⊝
ᐗ℉ᦪᩋᩲᙠᐗ᳝␺
ᨵ✌“ᡃᨵ⏀Ḽ!᧡#⍗%&'⌾)*ᧅ%),ᜐ./
⏀012
3456⏀7”ᵨ;<᪾>⊤@᝞>ᡠCᓽᨬFGHḄx=0,ᑣKLGᐭḄxḄNO()A4B16C8D-32PᫀBR+᪆UVGᐭx=x,i=l,WXᩩZ[\]^;U`VGᐭx=2x-l,i=2,WXᩩZ[\]^a

48UbVGᐭx=2f2x—1—l=4x—3,i=3,WXᩩZ[\]^aUVGᐭx=2f4x—3—l=8x—7,i=4,WXᩩZ[\]^aUpVGᐭx=2f8x—7—l=16x—15,i=5>4,tWXᩩZuv]^.GH16x—15=0,Ryx=zᦑ⌱B.13.~ᦪzWXiz=-3+2ifiOᦪᓫᑣᦪzḄOa|zk.Pᫀ3slR+᪆Vi-z=-3+2i,—3+2i(—3+2i)i—3i—2z—-i-==2+3i,ᦪzḄO3,|Z|=^/22+32=V13-14.f2018ᙠ☢ᑁᦪ2=ḄUb▲ᑣᦪ஺ḄN¢£.Pᫀf8,0R+᪆ᙠ☢ᑁᦪ2=¤7=¥¦ஹ=%+%i,1ᓝ1f1ᓝ1f1—12ZḄf%,%Ub▲.,.5<0,Rya<0.ᑣᦪ஺ḄN¢£f8,0.15.f2018ᜧ¬᡻^᝞>ᡠCḄ;<᪾>GHḄsNOPᫀR+᪆]^;<᝞®1W2018,s=-3,"=2a2W2018,s=-],஻=3a3W2018,s=a,n—4<4^2018,s=2,n—5,ᡠ³sḄᕜµO4,¶O2018◀³4Ḅ¸ᦪO2,

49ᡠ³GHS=16.2018ᓭ᡻^᝞>ᡠCḄ;<᪾>GHSḄNOPᫀ1009R+᪆᡻^;<᪾>7TS=0+l-sin2=0+1,1=3,3W2018a5=0+l+3-siny=0+l-3,i=5,5W2018aS=0+l-3+5-siny=0+l-3+5,i=7,7<2018aS=0+l-3H------l-2017-sin³º=0+1-3H------1-2017,z=2019,2019>2018.GH5=0+1-3+5-7------2015+2017=(0+1)+(—3+5)+(—7+9)+…+(2015+2(H7)=l+2+2H-----F2=1+504X2=1009.12+4ᑖ⚗4.☢ᔣ1ᦪᦻᓄ1.2018»□᝞>ᙠ½/8C
8E£¾4cḄ
¿஺£■¾Ḅ
T}=a,AC=b,ᑣÁÂfB'

50A.'a+/C.%+*D.^a+^bMᫀB6+᪆,ᙠ½43஺
BE£4c¾ÃḄ
¿,.\AE=^AC9O£¾Ḅ
—*■1——*--►Q.AO=2(AB+AE)9J.AO=^4B+^AC,'QAB=a,AC=b,'.AO—^a-\-^b.2.ÄÅᔣÇa=(2,4),\b\=2,|a-2*|=8,ᑣaᙠa+8¥ᔣÃḄᢗÉO()An3^25^/513®R.5D.8I,.7LJ.JQMᫀD6+᪆ᵫa=(2,4),|Z>|=2,|a—2bl=8,ËÅÌ=⊤ᵬ^=2Î(a—2b)2=/+4¥2-4.Ï=64,ᑣab=-7,ᡠ³aᙠa+b¥ᔣÃḄᢗÉO(Ð?=/2;LI஺ᓝÒyla-+b-+2ab20-713^10-A/20+4+2X(-7)-]0-3.~ÓÔÕÖᔣÇa,5WXÌ=1,×=2,|2a+b|=2ÎᑣaØbḄᜳÚO()MᫀC6+᪆Ûa,஻ḄᜳÚOÜ0G(O,n],ᑣᵫo=1,×=2,\2a+b\=2y/3,y(2a+Z>)2=i2,ᓽ(2a)2+4aA+Z>2=4+4aZ>+4=12,1TTᡠ³஻p=1,ᡠ^cose=],ᡠ³8=?

514.2018Ã⛸ÛD,EOÞbÚß/8C
8c¾ÃḄÓÔbÂᑖáBC=2,ᑣÂfA.1B.|C.yD.yPᫀCR+᪆᝞>\AB\=\AC\=2,AB,AC=60°,<஺,E£¾8cḄÓÔbÂᑖQ.M-AE=ZAB+â.ã+Q=^AB+aἘGæ+1■Ἐ=||A8|2+|A8JC+1|JC|2=§X4+§X2X2X/+g><4=ç.5.2018èé᝞êë=2,ᔣ=3,ab=4,ᑣ|஻2ìḄN£fA.24B.2*C.-24D.-2íPᫀBR+᪆ᵫ|஺|=2,|஺|=3,ab—4,y-2.=—2b2=yja2-\~4b2~4ab=ஹ4+36—4X4=2^6.6.2018᧎ï;ᜧðñòóôᨵõ“ö÷öᓝøùúûᑖüýþÿ.ᓝ⌕ᦪᩭ.⌕ᑖ᜜.”996!ᑖ"#〈%8&'᝕)*+,-&./0117,3ᑮ&5'6.ᑖ78-9⌕:;ᑖ<='᝕Ḅ?@᜜ᑣ&5'ᑖBᦪCDA.65B.176C.183D.184EᫀDG+᪆᪷L⚪NB&5'ᡠB!Ḅᦪ᪀ᡂ-&:RᦪᑡTU,ᐸW417,஻=8,$8=996.8X7ᵫ:RᦪᑡZ஻⚗\]NB8+—X17=996,aiGBs=65.ᵫ:Rᦪᑡ^⚗\]B_=65+8—1
a17=184.

527.ᓶdWeᦻᓄḄhijkᭆm᝞o1dᓶqroᐸs☢ouvo2WḄx~4BCDEFGH,ᐸW04=1,ᑣ%{|ᑡ}~জ▟=0<ঝ᧕.ᔊ=-ᙶ@0B+0H=-y[20E<®\AH-FH\=^2-yf2.ᐸWx}~Ḅ&ᦪCDA.4B.3C.2D.1EᫀBG+᪆~4BCDEFGH,HDLBF,Q.HDBF=0,ᦑজx04-53=1xixcosᦑঝxOB+dH=y[2OA=-yl2OE,ᦑঞx\AH-FH\=\AF\=\OF-OA\,ᑣ|Ἄ=1+1-2X1X1XCOS=2+6.•.=ஹ2+ᖾ,ᦑট┯.xḄ}~জঝঞᦑ⌱B.8.C2018£¤q¥Dᡃe§¨ᦪk℉ª«¬®¯°Wᨵ-⍝⚪³ᐸd“µᨵᘤW·¸¹ᐸᦪZº»W¼ᑖº-1½ᑖº-¾·-ᧅÀᓣ.·ÃÄÅ᝞odÆÇᐸÈÉḄ-&ÊË᪾oÍÎ{ḄS=2CᓫÑᓣDᑣÎᐭ᝕ḄÓCD

53A.6B.7C.8D.9MᫀC6+᪆▅ÕÊË᪾oÖ/ᓄᦪÓN=l,S=k,×Ø}Ù᡻Û᝞|kk-஻=1<4ᡂÜ஻=2,5=^—2=2?kkkÝ஻=2<4ᡂÜ/7=3,S=/—5=kkk¼஻=3<4ᡂÜn—4,S=§-À=4½஻=4<4¸ᡂÜÎ{5=Þ=2,GBß=8.9.(2018•àáq¥)ᙠäNBCW8cåḄWæḄç2,èPdä/BCᡠᙠs☢Ḅé-èᑣê•ê+ᡃ•ëḄᨬíÓ()A.1B.2C.-2D.-1MᫀC6+᪆ïÜ᝞oᡠðḄs☢3ñᙶ᪗ó)=2+஺-1ᨴ222,

x=0,y=lᡂ.ᡠ•+ḝ•Ḅᨬ-2.

5410.2018!"#$%&ᔺ%Ḅᦪ)*⌼,-“/0ᙊ23”5ᵨᦪ78ᔠḄ2:;<,/0=ᳮḄ?@AB5᝞3ᡠD“/0ᙊ23”EᵫGHᐰḄJK$K7JKLMNO1P#QᡂḄHᜧS275ETUᑖWHS275᝞XᙠᜧS27ᑁ[\]^5ᑣ`^]aETḄS27UᑖḄᭆ᳛W#ACLf\_>•12jᫀcm+᪆ᵫ⚪pqr5sJK$K7ḄJKLMᑖtu50,ᑣᜧS27ḄLM24,S27ḄLM1#hᡠᜧS27Ḅ☢z4{5S27Ḅ☢zI#?{5ᦑᡠᭆ᳛ᔩ=1ᙶ.11.2018ᓭ#ᡃ%℉Ḅᦪ)℉ᨵᕜஹஹஹஹ□ஹ¡ஹ¢£ஹஹ¤ஹ¥\10U¦5§¨“ᓝ¦”.ª᪥ᦪ)ᐶ®ᵬஹ°ஹ±ஹ²G³)´℉Ḅᦪ)℉µ¶·¸Ḅᐶ.ᜩ5º»᪷½ᨬf´¾ᓝU¦Ḅ▅ÀÁᦪÂÃÄ,¾ÅÆ5ᵬP“°O²Ç”È°P“ᵬO±É”ȱP“ᡃO²É”ÈTP“±O°É”5ᨵḄW5º»ÄḄ¾ÅÆE5ËᨵHÌÄḄWÍÎḄ5ϾHÌSWº»GHÌEÀ¦ÁᦪᨬÇḄHº»GHÌ´¾ᓝU¦▅ÀÁᦪᔜÑÒ³#.ᵬஹ°ஹ±ஹ²ᢥᔜÌÀ¦ÁᦪᵫÇᑮÉḄ᣸ᑡW#A.°ᵬ±²B.ᵬ²°±C.±ᵬ²°D.ᵬ±°²jᫀDm+᪆ᵫ⚪pqᑡ⊤Û᝞ÜPᵬ°±TᵬIJு°°Äᵬு±±Ä±ு²

55²Ä±ு°´Þ⌱⚗A,ᵬ5²ÄḄá´5ÑâᔠËᨵHÌ´È´Þ⌱⚗B,±5²ÄḄá´5ãÑâᔠËᨵHÌ´È´Þ⌱⚗C,°ÄḄ´5ä°ÑWᨬÇḄ5ÑâᔠÈ´Þ⌱⚗D,ᵬÄḄ´5ãSåWᨬÇḄ5âᔠ5⌱D.12.2018•æᓅḕ⊝êE)!"#ërì|=||=2,^Cᙠîïð5ᓈ|Ḅᨬ1,ᑣ|ᡧ—ô^fGR
Ḅᨬ#A.gB#C.2D.jᫀBm+᪆:⊈|=|÷=25...^OᙠîïḄᚖJᑖîð.•.•^Cᙠîïᨴ8ð5|ᐗ|Ḅᨬ1,.•.
CWZ8ḄE^ᓈ|ᨬ5`|û=1,`ᵫü᝕ḄᜳK60°,Q.O4,ÿḄᜳ120°.—f▐2=+?2.=4+4*-2f-22cos120°=4+4/+4=40+/+33,/=—3ᡂ.[aḄᨬ3,⊈/▐Ḅᨬᵫ.JT113.2018"#$%&'()ᔣ+஺-.Ḅᜳ/0=1,\b\=yᑣᔣ+஺23-஻Ḅᜳ.5ᕆ37+᪆a-b=\a\\b\cosj=1,1?a\a—2b=a-2ab=y

56\a-2b\=yl(a-2b)2a(g—2b)19ᔣ+a—2b-஻Ḅᜳ0,cos3—\a\\a—2b\2'@஺£[0,ᐔ],ᡠH14.J2018•MNOP'ᡃRᓭᓅUVḄᦪX#YZ[/\]ᦪX^_7`ab.cḄde,fᙠhYZ[ijklmn7ab.cḄopq⚪sq⚪᝞uvpwsxyspzsx{sp|{sx.ox}opsqpwz|ᔜ0ᵨᦪ.⊤v9pwஹpzஹp|Ḅᦪ+ᑖx,y,z,ᑣpwஹpzஹp|Ḅᦪ+ᓽ.c5x+3y+|=100,Ḅ7.ᐸ7⚪cᵨc᪾⊤s᝞ᡠsᑣc᪾k᦮.x+y+z=100ᦪmḄᫀ4z5x+3y+?=100,7+᪆ᵫ13,x+y+z—100,7y=25—%,ᦑx4Ḅ¡ᦪsx=4fsy=25—7f,ᵫy=25—700sfḄᨬᜧ3,ᦑᑨ¥᪾¦§ᐭḄ/f<4?,ᓽª=4.15.«¬ᔣ+a,b®¯°±²s«Ja+28'sJ3a´,a_bḄᜳµ?ᑣ¶ᦪt

57Ḅ.9¸ᫀ-5ᕆ57+᪆ᵫ஺-bḄᜳµ»nabab,,8$1=½=¾'ᦑ"=12ᵫJa+2b'_LJ3a—Â'3/-fa•5+6஺஻-2Ä2=0,ᓽ32+J6H0|2—4/2=0,a¬ᔣ+saᡠH|aÅW0,ᑣᨵ3+6-/—4/=0,7s=È16.J2018•É□%&'()ᙊḄÌÍ1,A,B,C,஺Îᙊ_ÏnÐsᡂ+Ñ=ᔊ,ᑣÓZSC☢ØḄᨬᜧ.ᫀ17+᪆᝞ᡠsᵫ/+12=")sÏÙÚ"3OCÜÝÏÙÚ,W4,B,C,DÏÐᐳᙊ,ÏÙÚZ3CCßÚsᓽ8cᙊḄàÍ,I1AB2-{-AC21/\ABCḄ☢Øâ----2---=/஺2,/ᙊḄàÍsÓ44CḄ☢Øᨬᜧ.••49=/CsÓZ3CḄ☢ØãᨬᜧJX4=l.12+4ᑖ⚗5345ᦪ634731.J2017•æç'()cosx=wsᑣcos2xµJ'1111-B-C11DA.-44-_0_0OOᫀD

587+᪆cos2x=2cos4-1=2ê—1=/.ᦑ⌱D.2.2018,ìMḕîÐïkÂð᪥%&'()a£J0,.'ssinòItan஺ó'µJ'3377A.gB.-gC.^D.ᫀB7+᪆@Q£J0,õs☢஺=öᡠHcosa=^/l—sin2a÷zsina1ᡠHtana=R^=*gஹ1øtana~13ᡠHtanaF=ùK=-È3.2018•úûOP'âᑮýᦪyucosl-sii?x+lḄþsÿ◤
ᦪy=sinx+cosx
2ḄA.ᔣᓫB.ᔣᓫC.ᔣᓫD.ᔣᓫᫀD+᪆>»=cos2x—sin2x+1=cos2x+l=sin2x+
+l=sin|^2x+^
+1,y=sinx+cosx
2=sin2x+1,ᡠ!"#ᑮᦪy%!&'(sii?x+lḄ)*◤
ᦪy=sinx+cosx
2Ḅᔣ+ᓫ.4.᝞ᡠ.)/ᙢ(ᜩ62143Ḅ45ᓄ789:;<ᦪ==4sin5+p
+b,ᑣ?@78Ḅᦪ+᪆AB!

59xe[6,14]xe[6,14]C.y=lOsinfe—v)+20,%e[6,14](TI5TCAD.y=lOsinPgX—g-J+20,xe[6,14]ᫀA27rJrI+᪆ᵫD•=2(14—6)=16,#E=g,F=2(30—10)=10,6=20,#30=10sin-X14+,+20,sin(g+ᵨ=1,"J=2ộ+LkeZ,᜛=2᱐(O)kGZ,P=1,#9=Qᡠ!y=10sin1+R+20.5.STᙠVZ8CW)J,B,CḄXYᑖ[a,b,c,\஽=^)c=3,cosᑣ6_`A.y/2B.y/3C.2D.3ᫀCi3+᪆ᵫabcᳮT)a^b2+c2-2bccosA,B#10=/+9—2F3ef(/(1=0,ᡠ!3—2
6+3=0,#6=2hi)ᦑ⌱C.)®>°);<./(ᱏ)=-2,6.2018lᓅnᜧ▬Wqr\ᦪ᜜=t|=0}(XḄᨬᑣᦪ᜜Ḅᓫ⌴

60A.2ᐔ(X)2%ᐔ+ᦇ£ZB.124ᐔ()2E+WZC.[E—?᱐ᦇ£ZD.[E—jy,E+ᦇ£ZᫀD+᪆yx=sinᐔ-GX+sin6+Gx=sincox+y/3cosজx=2sinEx+m᪷¤⚪Wᩩ§;<¨xi=-2,©2=0«1(XḄᨬ:)Tᐔᡠ!W=4)ᡠ!T=⇟,3=2ஹᡠ!/x=2sin2x+§,¯2E—5W2x+±W2%7t+m)kGZ,᦮ᳮ#᪹(¶+g,kGZ,ᡠ!ᦪḄᓫ⌴[¶(jf,᱐+¹£0.7.2018•½⛸qr᝞ᡠ.Ḅ¿ᦪÀsins+3y>0,0<Ãᙠ(℉½Ḅ)
ÆᦪᔜÈḄÉᙶ᪗ÌᑮÍᩭḄ(ÏÐᙶ᪗e5)Ñᔣ஻?஻?>0ᓫ57rÓ)ᡠ#ᑮḄᐵ`Õ8Ö=◤X×)ᑣØḄᨬC.fcD7ᐔO-24ᫀc+᪆ḄB#2ᐔ5ᐔ7=CD6

61ÑᵫÚÈÛÜB#2Ý(++0=0,.••9=?ᦑᦪ7xḄ+᪆A_Ax=sin2x+2.ᦑà/x=sin2x+§ḄᔜÈḄÉᙶ᪗ÌᑮÍᩭḄ(ÏÐᙶ᪗e5)ÑᔣØ©á0ᓫÓ)#ᑮgx=sin4x—4m+âḄ)••ᡠ#ᐵ`Õ8À\57rX×)%4äå—4□+W=ç+E)kRZ,#஻7=è(%ᐔ)kGZ,ᵫ©á0,B#ék=13)஻2Ḅᨬëo8.íᦪî&ïÖ¿Wðᓭò3óᩲõᦪö÷ø&ùḄ℉Ü)ᐰîᓝüᔁᐳüᓝ(ÿ⚪
ᑖ
⚪
ᦪḄ⌼ឋᡂ
ᐸᙠᔁ“!"#$”&'()!*+!,a,b,c#☢$Ḅ12,34567Ḅ8912:;<=
ᐸ#>?@“AB"CDᜧ"FG"F
HIJ
KLMN
AB"OLᜧ"FGN
HPQJ
R
ST◕
VWXY$.”[\AN3]ᦻ_ᑏᡂ12
ᓽS=yj3c2a2ߟg஺+j-+l,mᨵᕜp10+2sḄt/8CxysinAQsinB@sinC=2@3@~
ᑣᵨAN'Ḅ12#Yt/BCḄ☢$glA.6v5B.4~C.8~D.12ᫀA+᪆sin/@sin8@sinC—23:M,ᡠAᵫᳮYa@bQc=2@3@~
tNBCḄᕜp10+2s
ᡠAYa=4,b=6,c=2ᵫ
ᡠAtZ8CḄ☢$g2s…SSQ~=ẓ,ᦑ⌱A.9.g2018•£ᓭḕp¦§¨©lᙠt/BC
ᑁ*«
B,CḄ¬,ᑖa,b,c,[t/8C

62Ḅ☢$S,®2s=3+6)2—ᑣtanC=2abcosC-\-2ab,/.sinC=2cosC+2,.•.sin2c=(2cosC+2)2=1—cos2C,...cosC=—|(cosC=—1¹º)
VC!*+Ḅᑁ*
10.g2018♦¼½¾¿lᙠtN4C
C=60஺
BC=2AC=2yf3,À஺ᙠ,8CN
S.sinZBAD=W
ᑣCD

63•••ᙠAABD
ᵫᳮYAD=BD^ᙠt/ZlC
ᵫᳮY/£>=sin//X4cZ2y[3~DClX-OCXᙶ"2^7~Ì’77Y஺஺=Î.11.g2018•Ïᓭḕᓭ□sÑS§¨©l()Òᦪ./gxl=2sing3x+9lg0>Ol,[Ô§=2,Õ©=0,4lᙠgj
ᵯNᐹᨵᓫÚឋ
ÛÜ3ḄÝÞᐳᨵglA.6B.7C.8D.9ᫀD+᪆§=2,à=0,JIJIᡠAá஺+3=/+24ᐔ
ᐔজ+᜛=åᐔgæ஻?£Zl,4érᡠAgåS24lS᱇,å
kQZ,/gxlᙠÞNᐹᨵᓫÚឋ
ᡠA9U
ᡠATî
ᡠAWὡ
ᡠA஺
0OñåS2%=1,2,3,4,5,6,7,8,9,ᡠA஺ḄÝÞᐳᨵ9.12.()Òᦪ0l,[Xõ᜜l=-1ᙠg0,ᐔlNᨵ®÷ᨵPRᦪ᪷
ᑣRᦪ஺ḄÝÞúglᫀB+᪆,/gxl=2sing3x-§,û'᜜lḄÒᦪüý᝞üᡠÿ:

64জx—§=-^+2Eᡈজ%§=+2ᐔkRZ,Q.x=-^-+—,ᓃᡈ=ὁ+kZ,6coco2coCDy=-ly=/(x)ᙠ(0,+8)ᑮḄ4!Z,5!6,,3ᐔτ2ᐔᐔτ4ᐔm)ᑣx?i=S-+pᱥ=7~+p“2஺co»6a)co•&'4)=-1ᙠ(0,ᐔ)ᨵ)*ᨵ+,ᦪ᪷\X/V7CWX8ᓽὁ+0ᐔ⚪2coco6a)o)725234জW6.jr13.ᙠ848C9:B,Cᡠ<Ḅ=ᑖ?!஺b,c,@AN4=§,a=7,:=5,஺B
BD=2DC,Cijc=;|y4Z)|=•Dᫀ8FJT2+᪆᝞IN/=a—1,b=5..•.᪷JKLMᳮ3a2=62+c2—26ccos/,ᓽ72=52+C2-2X5XCX1,O.c=8ᡈc=-3PQR.+c,2—b249+64-2511..cosB=_2ac-=2X7X8=S•஺BTU=2V,

65ᙠA4BD9ᵫKLMᳮY3AD2=BD2+C2-2BDC-COS8=Z[+64—2X,X8X1|=244cQ.AD=^-,ᓽ|d|=^\14.Z2018•hᓭḕk□m9nopRᙠ8Z8C9sZ,B,Cᡠ

66ᵫàLMᳮY3஺=á*=ߟ—=500,olll1JUJ65ᵫKLMᳮa2=h2+c2-2hccosA3125002=12602+C2-2X1260XCX—23å=1040,஺2=[æu஺=çD⚪I9/CᨬᜧèéPQJY3c—1040.À8ÇÈᵬ@êëì50X(2+8+l)=550(m),î◤ë710mñòᑮóC.À´µḄÃÄ!vm/min,ᵫôõö3W-^--1÷W3,2öᡠ!Ò®Á¨©ᙠCᜐÓÔÕḄÖ×Ø3ᑖÆÀ´µḄÃÄSøᑴᙠúûüýÚᑁ.16.(2018•þÿ
)ᙠZ8C஺8CḄ4c=2,4D=,CD=\,8ᙠZCḄ8=8C,ᑣ☢NQCḄ☢Ḅᨬᜧ".Mᫀq$+᪆᪷)⚪+,-./cos/ZC஻=5Mg=ᙶ9:;<Ḅᑁ<ᡠ-NZC0=3O஺ᑣBᑮ4CḄDE2XIXsin30°=1,98ᙠ4CḄPB=BC,ᡠ-Pᙠ-8ᙊO-2PQḄᙊRSPᑮ4cḄDEᨬᜧTNDCPḄ☢ᨬᜧVT8ᑮZCḄDEᨬWVTᑮ4cḄDE2—1=1,VTḄ☢S=^X1X2WX£+^X2WX1=\.

6712+4ᑖ⚗6ᦪᑡ1.]2018^_`abcdeᦪᑡh%jḄk஻⚗mS”oᵪ=5,r=27,ᑣt0du])A.17B.18C.19D.20yᫀB$+᪆ᵫdeᦪᑡḄk஻⚗m|},~rSj=27,$/05=3,ᡠ-ᵫdeᦪᑡḄ⚗|},/020=05+151=3+15X1=18.2.]2018•ᜧ`abcdᦪᑡhjḄk஻⚗mS”S2=3,S4=15,ᑣ$6du]bA.27B.31C.63D.75yᫀC$+᪆ᵫ⚪+/$2S$-S],$6-$4ᡂdᦪᑡᡠ-3,12,$6—15ᡂdᦪᑡᡠ-122=3X]$6-15b,$/$6=63.3.]2018•`ab~⌴Ḅdᦪᑡhjᓽ=6,m+1,a+2,Ḅᡂdeᦪᑡᑣ2ᦪᑡḄk6⚗mS6du]bA.93B.189C.D.3781OyᫀB$+᪆cᦪᑡḄ|Wᵫ⚪+,~g>l,2]+2b=஺|+1+Ḅᓽ2]6+2b=஺+1+6᜛᦮ᳮ,/2g2-5g+2=0,ᑣq=2]q=±bᑣ஺1=3,ᦪᑡḄk6⚗m[?=189.1—24.]2018⃂ᵪ
bcdeᦪᑡhjḄk஻⚗moS[3>0,&4<0,ᑣS.¤ᨬᜧ"TnḄ"]b

68A.6B.7C.8D.13MᫀB6+᪆᪷)S[3>O,S14VO,,-¥¦஻1+஺13=247>0,4]+4]4=4+យ<0,ᡠ-,-/ᑮ஻7>஺7«8<0,ᡠ-S”¤ᨬᜧ"T஻Ḅ"7.5.]2018•;¨
boS஻ᦪᑡh6jḄk஻⚗m,S஻=2a஻-2,ᑣS&du]bA.255B.256C.510D.511MᫀC6+᪆S஻=1T41=8=241—2,)V,/41=2,STS=2a—2,S~\=2a-\—2,nnnnª}«e,/=2஺“-2a,j-1,ᑣ%=2஺஻—i)V,/ᦪᑡhj:✌⚗2,|2Ḅdᦪᑡ2X]]—ᐸk8⚗mS8=°|_7^29-2=512-2"=510.26.~ᦪᑡh஺“j஺]=1,02=2,+2—஺”=2—2-]-1b",nGN,ᑣS2017Ḅ"]A.2016X1010-1B.1009X2017C.2017X1010-1D.1009X2016MᫀC6+᪆ᵫ⌴³|},/S஻᜻ᦪTµ+2—µ=4,ᦪᑡh%jḄ᜻ᦪ⚗:✌⚗1,|e4ḄdeᦪᑡS஻ᏔᦪTa-a=0,ᦪᑡhµjḄᏔᦪ⚗:✌⚗2,|e0Ḅdeᦪᑡn+2n$2017=]ᜐ+Ḅ-|---H^Z2OI7+
«2+^^4^---------H«2OI6=1009+1x1009X1008X4+1008X2=2017X1010-1.7.]2018ᓭᐙ
b»~ᦪᑡhj¼½m=0,a„+i=஻CN*,ᑣḄ6du]bW஺"+1A.°WB.0C.WD.ᙶMᫀA6+᪆9%+1=¿S]஻6஺V_ᡠ-஺1=0,஺2=2»Ḅ=4^஺4=°,%=-…ᦑVᦪᑡḄᕜÂ3.ᡠ-஺56=஺18Ã3+2=஺2=°W•

698.]2018•Ä□`abÆÇÈÉÊË:ᡃÍÎÏḄᦪÐÑ℉Óᨵ᝞Ö×⚪Ø“ÙᨵᜧÚஹÜÝஹÞßஹR⌼ஹ|áâãäᐳæ/ãçè-᱃êᑖì×ᔜ/îïð”ᐸ+ñ:“ᐳᨵãᜮç5ä-᱃êôõᑖö]ÎÏᦪГ-᱃êᑖì”÷ø⊤ú°û⊤üdeᑖöᙠý⚪⊤üdeᑖöb."ᙠ÷þ×⚪oᜧÚ/“°çஹ;ᑖçìÿ”
ᑣA.ᑖB.ᑖC.D.ஹᑖᫀA+᪆ᯠ5ᡠᡂ!"ᦪᑡ
%ᡠ&x,5*+x1ᑣ---2------=59../ᦪᑡ0123ᔜ⚗ᙳ&7ᦪḄ!9ᦪᑡ
S஻3ᐸ=஻⚗>
?S2+஻2=S3—3,ᑣA+3஺2ḄᨬEF&A.12B.9C.6D.18ᫀD+᪆I&S3—§2=43ᡠJᵫ$2+஺2=$3—3,Ḅ஺2=3,3%!9ᦪᑡ012Ḅ9&ᑖᑣᐔM
ᵫN0஻“2Ḅᔜ⚗&7ᦪ
ᡠJq>l.஺4+3஺2=஺U3+3஺Vஹ37=0VX+3=Zyygq2+3]^_]q—1=2,ᓽq=3b
“4+3஺2cᨬEF18.10../ᦪᑡ0Ḅ2Ḅd⚗e&“=2"஻eN*,ᦪᑡj“2Ḅd⚗e&E=3"-1,klmḄᐳ⚗ᵫEᑮᜧ᣸ᡂḄᦪᑡ&ᓃ,2,st,=u
ᑣ—ḄcFw&1ᓝX\X—\XnnA.[1,2B.1,eC-|,$D?eᫀC+᪆ᵫ⚪~/
012,02ḄᐳV⚗&2,8,32,128,…
ᦑC஻=22"T.

70I___c'஻ᵫ1+1]s=X\-X-Xn}nᑣ]஻22b
/ᦑᦪᑡ{£,}3⌴ᦪᑡ
——}——X1…X.-1X”2•/]x>0b,ln(l+x)
R=2
21+|+3S“=3஻£N
,?£+?”~Ḅ஻£ឤᡂ
ᑣᦪMḄᨬEF&A.2LB.yD.4ᫀC+᪆ᵫ஺1=5
2a+i+3S„=3(^eN*),n2a஻+3s-]=3,஻22.l

71e
2a+1—2a+3a=0,nnn1+i1ᓽ
5=%3Qi=],/.2tz+3S]=3,ᓽ2஺2+3஻|=3,23.¤=_]_4,•,Tᑣ¦3
]"=1b
§cᨬᜧF3]஻=2b
S”cᨬEFM7⌕©S„~Ḅ஻eN*ឤᡂ.«3᪷®¯ᦪḄឋ
]b,241S஻cᨬᜧF±,41me±,41
ᦪ"ḄᨬEF&³.12.2018•´ᓭḕ·□¹º»¼½¾./ᦪᑡ0%2]2k~1-1,?ᦪᑡ0஻஻2Ḅ=஻⚗>&s”ᑣ5„>10ḄnḄᨬEF&A.59B.58C.57D.60ᫀB+᪆ᵫ⚪~
]A=1b
2°-1<»^2'-1,ᓽ஻=1,ᑣᡠJS=5]É=2b
21-1

72]ᡃ=4b
23-1&Û**=◤
sÝ>2.5,஻?>,ᡠJ]S”>10b
«>57,ᡠJ஻ḄᨬEF&58.13../!9ᦪᑡ0ÞḄ="⚗>S—ᑣḄß=
ᦪᑡ>(஻+4)â)2Ḅᨬᜧ⚗3ºA■⚗
ᑣÉ=.ᫀ194+᪆!9ᦪᑡ=஻⚗>eᐹᨵḄᱯæ&Sn=aq"—a,ç/
r=—1,ᑣS஻=3஻-l,473=5—5=(33—1)—(32—1)=18,32஺3-è=19.sb"=஻(n+4)*)"
^b„>0,ᑴê±1=2஻ì6஻+5b”+i2“2+6஻+5>1w2<10,bn3J+4஻b“+]2J+6஻+5<1/>10,h3n~+4nnç
ᦪᑡ»Ḅ⚗"Vb203Vb4
^bpbs>b0b7>b*…,ᑣñ=4.14.(2018•òᓭḕᓭ□¹º»¼½¾)ó/ᦪᑡ012Ḅ=஻⚗>&S“=p஻2—2஻
஻£N*,bn=êõö÷ø
?ᦪᑡ0ù23"&2Ḅ!"ᦪᑡ
ᑣᦪᑡ0%2Ḅd⚗e&

737ᫀa=3/?—w+᪆ᵫS஻=p஻2—2஻
஻£N*/
]஻=1b
a=S=p—2,]]b
a=S—S-\=2pn—p~2,nnna\=p-2úᔠ¦e
ᡠJ~Ḅᙳᨵa=2pn—p—2,nᑣ—a஻=2p,IZᦪᑡ0Â23"&2PḄ!"ᦪᑡ
஺2=3
-2,b\=a\=p—2,,஺]+2஺27P—6,Ip—6/ý2=-[+2=3'ᑣজb\=3ZP-2=2,2p=3,p=z,«i=—1,ᡠJᦪᑡ012Ḅd⚗e&%=Ï+஻ÿ1
3=3஻15.2018ᜧ
ᦪᑡḄ஻⚗S஻!஺]=1,យ=2,a=2n-2aa3nn93n+[=a~\~1,஺3"+2=஺஻—஻ᑣ$30=.ᵨᦪ)*+
n+ᫀ75•a3n2஻2anp஺3"+14஻~^~1,Ḅ஻+2=஺஻3஻஻i=l,஺2=2,஺3=2-2஺]=2-2=0,஽4=41+1=2,஺5=஺]-1=043+04+05=2.,஻3஻2H2a,஺3஻+14஻+1஺3”+2஻89☢;<=>?@A஺3஻+஺3஻+1+஺3”+2=஻+1஺10=ḄB3+1=Ḅ+1=0+1=1,,஺30=ḄBio=2X10—2S7IQ=18.S30=41++஺3+஺4+஺5+஺6+஺7+஺8H-------H஺27+஺28+஺29+஺302+10
X9.=1+2+t-——y2—+18=75.16.ᦪᑡយIJ“1=4,a+i=aj,—a+\ZnGN*
,ᑣ:----F——Ḅ᦮ᦪPᑖRnn+ᫀ2S+᪆U“1=],ᓽ+1=*—a,7+l"WN*
,

74ᡠZa^-\—a=(a—1)2>0,nnnᡠZ+1>,ᦪᑡᓫ^⌴`,ᡠZa+—\=a(a—1)>0,nnnᡠ%Z+i-1fgJ”-11)ஹ=a£—7\_da„nᡠZ2=Ur]ᡠZ஻7=$2017=3஺2018-1'4UᡠZᦋ=&/+1=l,6=(f-S+l=n஺4=%o1>2,…ᡠZ^2018^2017^2016>,>^4>2,ᡠZ3lLl>lᡠZ0

754,4RRᡠZᵬRḄ⌕ᩩ.ᡠZᵬRḄ⌕ᐙᑖᩩ.2.2018•9⛸
ᔠ2,4,8~w⌱¢<ᦪ@ᑣ£¤2+9=1⊤¦§¨᳛ᙶḄ«ᙊḄᭆ᳛
A.®B.®C.1D.1+ᫀcS+᪆ᔠ2,4,8~w⌱¢<ᦪwᑣ2ᑗ=2«ᙊ£¤x²"+®=1,§¨᳛,=£=ஹ=$®X22@=4£¤´+®v=1,⊤¦ᙊ®X2v2w=8«ᙊ£¤R+N=1,o4£¤2+9=1⊤¦§¨᳛Ḅ«ᙊḄᭆ᳛¶3.2018•·¸ḕ¹᪥ὶ¼
½¾⌴ᕒwᙠ12d00-12d30Ḅ½<ÁᑮÃÄ,ÅÄÆᡝᙠ12d20ZÈÉᑮ¾⌴Ḅᭆ᳛
A.®CdD.|+ᫀBS+᪆ᵫ⚪ͽ¾⌴ᕒwᙠ12d00-12d30Ḅ½<ÁᑮÃÄÅÄÆᡝᙠ12d20ZÈÉᑮ¾⌴᪀ᡂÐÑÒÓÑḄÔÕᭆÖᡠZᡠ×ᭆ᳛ØÙÖÚ4.2018ᓭÜÝÞ
ßà☘â⁚äå~æ;1
,2
çèéêë3ìíîïðÒðAᑖñòḄóôõ᝞õᡠ¦ᓫ÷dᑖ
ᐸ~æ;2
çAᑖᨵ<ᦪ)úûüýþÿ
ᎷᦪxᐹᨵឋxGN,2Ḅᙳᑖᜧ1ḄᙳᑖḄᭆ᳛#

76A3-1-3>2A4B3C5D5.ᫀDߟ89+92+93274—0+᪆ᵫ4567(1)Ḅᙳᑖ#x=

77¡2a-b^2Ḅ~®ᙠUᒹvn¯,᪷°±ᭆ²Ḅᭆ᳛d³
7ᡠ´Ḅᭆ᳛P=/M=..ஹ/ABCDx7.s<PᙢᙳᒴḄp·☢¸¹ᐹ·☢º»¼᪗ᨵ1,2,3,4ᐜ¿À}Á¼
ᑮḄ~ᦪ»¼Ã#a,b,ᑣÄÅ“2P—6=0”ÇÈḄᭆ᳛#1111R-C-D-A.84216.ᫀB0+᪆s<PᙢᙳᒴḄp·☢¸¹ᐹÉÊÀ}Á¼
ᑮḄ~ᦪ3,6)ᑖËT(1,1),(1,2),(1,3),(1,4).(2,1),(2,2),(2,3),(2,4),(3,1),(3,2),(3,3),(3,4),(4,1),(4,2),(4,3),(4,4),ᐳ16.ᐸU¡2a—b=0ᓽ6=2஻Ḅᨵ(1,2),(2,4),ᐳ2
21ᑣÄÅ"2a-b=0”ÇÈḄᭆ᳛ᦑ⌱B.10o8.ᙠpqrᑁᨵÁᡧrÓÔ«¬᝞6U▢hiᑖᡠj
ÁᡧrᡠᙠᙊḄᙊÖ×TpqrḄ⚔~
ÙÚ#pqrḄno
ᔣpqrUÀ<ÛÜÝ
ᑣÜÝᙠ▢h«¬ᑁḄᭆ᳛#.ᐔA4ccᐔC.2—2.ᫀD0+᪆pqrḄno#a,ᑣÁᡧrᡠᙠᙊḄÙÚÞ#“
Sßqà=/,S.â=/ã2,ᦑS▢h=2Sᓩr—Spqr=2Xåᐔ஺2—஺2=åᐔ஺2—42,ᑣÜÝᙠ▢h«¬ᑁḄᭆ᳛p=2=^—1.3pqrZ9.êᦪë/=ì0,஺2,Ḅ
…
a஻î"GN*,ðñ0U
ᡠᨵᐗóḄdXᙳᦪÃ#E1,ᓽEm=£lºᔢᵨù±ûüêᦪë8¡ýᑡÁᩩ
জঝE1B
=E1A
,ᑣ84Ḅ“ᒹᙳ”.ᔠ1,2,3,4,5Ḅ“ᒹᙳ”Ḅᭆ᳛"#

787351CD-1683232%ᫀA(+᪆ᔠ{1,2,3,4,5}Ḅᐳᨵ25=32£=3,12⚪4Ḅᔠᨵ{1,5},{2,4},{3},7{1,2,4,5},{1,3,5},{2,3,4},{1,2,3,4,5},ᐳ76.7=ᡃ.10.:;<ᙶᙠ?ᙊABC;☢EFḼHᐰJKḄLMᡠᨵ;KOPQRSḄLM.TLMU☢VWᑣX;YZᩭ6TLMU☢V\ᑣX;]^ᙶḼ_`aᨵJbḄc;YZᩭḄᭆ᳛()11571A-B--C-232D.416%ᫀc(+᪆:;Ḅhi1,2,3,4,ᵫ⚪4ᡠᨵkᐳᨵ24=16(m)aᨵJbḄc;YZᩭḄnokᨵ(1),(2),(3),(4),(1,3),(2,4),pqWaᨵ;YZᩭḄrsᨵ1mᐳ7mtu7ᡠvaᨵJbḄc;YZᩭḄᭆ᳛w.11.(2018•y᪥ὶ|TOP20ὶὃ)ᦪxḄᨬᜧ᦮ᦪ,ᑣᦪ᜜)=r᦮ᦪᦪ.ᙠ14Wx,ᑣᵪ=ஹḄᭆ᳛()A.B.6C.6D.,%ᫀD(+᪆xGl,4O6¡2ᖾ,ᡠvஹঝ'=1ᡈ2,l^x<2,_ᡠv1Wª2,ᓽ14<2O¬=:=1f2Wx<3,®ெ2W°<3,ᓽ2Wx<3O3=/=2,ᡠvlீx<3O=¡³,ᦑᡠµḄᭆ᳛7=¶=94—1312.¸¹º»U¼½¾ᔜ½ḄÀÁᑮÃU¼½¾p¸¹º»XÃU¼½¾ᔜ½ḄÀÁᑮÄÃḄU¼½¾ÅÆU¼½¾ᑁÈÉᥜËmᑣmÌᙠᨬÃḄU¼½¾ᑁḄᭆ᳛()

79A.IB.-J7C.᳛D.I410Z3%ᫀB(+᪆᝞ÎÆU¼½¾N8C0EF,ᨬÃḄU¼½¾ÃBCQiEiB.ÏZ8=a,ᵫÐÑÁ//஺8=60°,ᑣ஺/=a,N/OM=30஺ᑣOA/=04cosN/OM=a,cos30஺=ᙶᓽÓḄU¼½¾Ḅ½ÔÕ6vÖ×ᨬÃḄU¼½¾Ã8஺஺ØᑁḄ½Ô08°ᙶOM=ÙÕ=Õ,ᡠvᵫÚÛᭆÜÁmÌᙠᨬÃḄU¼½¾ᑁḄᭆ᳛P=Sz{|74“*}=SU¼½¾Ý8aÞ°13a3ay[3_2TT269ᦑ⌱B.161aa-13.ᵬஹácâᔜᨵãäKåæçᙠ¹èéḄᡂëᑖí
ᵬâ
88,89,906áâ
87,88,92.᝞îᑖíïᵬஹácâÈÉ⌱äKåᑣXcäKåḄᡂëðñḄòó3Ḅᭆ᳛.%ᫀ|(+᪆õᨵ⌱Ḅᡂë88,92O12⚪4ᵫóökᭆ᳛÷ørÑXcäKåḄᡂëðñḄòó3Ḅᭆ᳛7=1—a=ùJA3v14.(2018Wúûüýþÿ)
⚩ᙢᙳᒴḄ,⚩Ḅᦪm⚩Ḅᦪ"ᔣ஺=(2,2—஻)ᔣ8=(1,1),ᑣᔣa_L!Ḅᭆ᳛.Mᫀ%+᪆ᵫ⚪+,ᵨ,”6{1,2,3,4,5,6},ᑣ(.஻)ᐳᨵ36123ᵫa_L6,4(.2)+(2—஻)=0,ᓽ஻?=",ᐳᨵ6123᪷89ᐺᭆ;Ḅ<=>?@4ᡠBᭆ᳛CD=/

8015.H2018•MNOPQR,SᦪᙠUV&3QYZ[\]ᦪᑘᑣHxoQ!OḄᭆ᳛C•4bᫀ56+᪆V/S~V=0e”(x—1)ᵫ-^2—20,@43—14•••/H⚗Q20Ḅᭆ᳛Ckl=m.16.opᨵ4qrᐰtuḄvwx\vwyᑖ{|☢.~4qvwᡂH᝞Qᑣᡠᨵtqvwᨵu☢tḄᭆ᳛.Hᵨᑖᦪ⊤Q6+᪆qvwḄᐰḄ᤮ᨵ24=16H1Qtqvwu☢tḄ23ᨵ21᤮ᑖ{|{||{|{ᡠtqvwᨵu☢tḄ᤮ᐳᨵ14716-2=14H1Q,ᡠᭆ᳛CD=77=R.10o12+4ᑖ⚗8;<;<ᫀ>1.H2018MNOPQᨵ30002000ᵱஹ᝕ᡠᓰḄ¡᝞¢ᡠ.Ck%Ḅ£23ᵨᑖ¤¥᪵Ḅ§¨©᪥¥[\«C஻Ḅ᪵¬,R,¨¥[᝕21ᑣ¨¥[ḄᵱᦪHQ®஺%HQHQA.12B.15C.20D.21bᫀA2116+᪆´Cᑖ¤¥᪵Ḅ¥[¡Ckµ=JUUU¶U./1uu

81ᡠ¨¥[Ḅᵱᦪ20°·S6=12.2.2018¸¹OPQºᔆᑭᵨ½¾ᦪ⊤¿Ḅ700\ÀÁÂÃ¥᪵ÄÅᐜ
700\ÀÁÂÃÇÈ:001,002,…699,700.¨¥[70\᪵¬,᝞ÊËk½¾ᦪ⊤Ḅ4Ãᑮ6Ãͨ⊤5Ã6ᑡÏÐᔣÑÒ[ᦪ8ᑣ4ᑮḄ6\᪵¬ÇÈHQ322118342978645407325242064438122343567735789056428442125331345786073625300732862345788907236896080432567808436789535577348994837522535578324577892345A.623B.328C.253D.007bᫀA%+᪆¨5Ã6ᑡÏÐᔣÑÒ[ᦪ8\ᦪC253,\ᦪ313,Ó\ᦪ457,¢\ᦪ860,Ôᔠ⌕B¢\ᦪ736,Ôᔠ⌕B¢\ᦪ253,×Ø\ᦪ007,Ù\ᦪ328,Ú\ᦪ623.3.2018•ÛÜÝQ¢ᐹᨵtᐵᐵàḄ\áḄᦪ8ḄᦣãäåæçÍèᣵ\ê4ë¢Ḅ5\ᡠìḄᦪ8ḄtᐵàᦪᨬᜧᑣìïèᣵḄHQA.DB.EC.FD.AbᫀB%+᪆´CtᐵàᦪḄðñòᜧòóô1,ᑣõp\áḄtᐵឋò÷.´CEᑮæçḄøùᨬúᡠèᣵUë¢Ḅ5\ᡠìḄᦪ8Ḅtᐵàᦪᨬᜧ.4.2018•ûüḕþÜ╋
᪥ὶὃ7ᦪḄᙳᦪ4,2,ᐭᦪ4,8ᦪḄᙳᦪᑣ!

82A.x=4,s=2B.x=4,S2>2C.x=4,s2V2D.x>4,S2<2/ᫀC_4X7+46+᪆᪷⚪:ᨵx=-o—=4,o5.᪥@ABCDE᪥20GHCIJᙳKᜩᙠN᜜PQRSTUḄV!ᑖX,᪷ᡠZᦪḄ[\]^5_`aᦪᑖb_,ᑖcde0,5,e5,IO,-,e35,40i,jkḄ⚣᳛ᑖno]᝞]ᡠqᑣrsḄ[\]tud!(HH0.030.020.0151()152025303540V!ᑖX7674765440764410755421075542109532()95320747477444076444075552102876521095320395520/ᫀB6+᪆P⚪vwxḄ⚣᳛ᑖno]tyZᙠzVe0,5,e5,10ᑁᔜᨵ0.01X20X5=1!,A~᣸◀ᙠzVe10,15ᑁᨵ0.04X20X5=4!;ᙠzVe15,20ᑁᨵ0.02X20X5=2!ᙠzVe20,25ᑁᨵ0.04X20X5=4!CD~᣸◀ᙠzVe25,30,e30,35ᑁᔜᨵ0.03X20X5=3!.ᦪt⌱B.6.!2018ᓭḕᵬஹᳫᕒᔜ13¡¢Zᑖ£¤ᵨ[\]⊤q᝞]§987799602256790302304

83᪷¨]©ᕒḄᡂ«¬¢®¯ᑡ±²³´µ¶Ḅd!A.ᵬᕒZᑖḄ᩽ᜧ¹ᕒZᑖḄ᩽B.ᵬᕒZᑖḄºᦪᜧ¹ᕒZᑖḄºᦪC.ᵬᕒZᑖḄᙳ»ᜧ¹ᕒZᑖḄᙳ»D.ᵬᕒḄᡂ«¢ᕒḄᡂ«¼½/ᫀD6+᪆ᵫ[\]tᵬḄ᩽47—18=29,Ḅ᩽d33—17=16,Aµ¶ᵬḄºᦪd30,Ḅºᦪd26,Bµ¶ᵬḄᙳ»2ÀḄᙳ»25,C,ÁÂÃᨵD´µ¶QĨᵬḄᜧ¹ḄÅdᡂ«¼½.7.¯ᑡÆÇ┯ÉḄd!A.ÊËoÌÍ᪵EÏḄÐ!x,yB.@AÑÒḄÌឋÔᐵឋÖ×ᑣÔᐵØᦪḄÙ©»ÚÖÛܹ1AAC.ᙠÌឋÊËÝ=0.2x+0.8Þ6ßÑÒxKà1ᓫº⚜ãÑÒyᙳà0.2ᓫºD.©ᑖåÑÒXæᓃ@AÑÒèḄéê»ëÖᜧᑣᑨí“xæyᨵᐵØ”ḄðñÝòÖó/ᫀD6+᪆᪷Ôᐵ½ôᑖ᪆A,B,Cµ¶.D©ᑖåÑÒXæyḄ@AÑÒõḄéê»ëᩭÆ÷Öᜧ“XæyᨵᐵØ”ḄðñÝòÖᜧᦑD´µ¶.8.᪥Dᑴ½⁚uû᣸Ḅü᪗HCDþᵨᵯ
ᓫᓟᜩᙳxᓫ஺C,⌱4ᜩḄᵨᵯᜩᙳ"#ᑴ%&᯿⊤X171510-2y2434a64ᵫ⊤ᦪ34ᑮḄ6ឋ89:;<_y=-2x+60,ᑣ“ḄC<lA.34B.36C.38D.42IᫀC

84—17+15+10-2—24+34+஺+64K+᪆x—4=10'y~4,>>=-2x+60MNO(%>y),24+34+஺+642X10+60,K4“=38.49.STẆ᪀<ẆWXYZᜮ\ᔲ^ᨵ`abᨵᐵ,defgXYḄhi,ᐹkᦪ3᝞m⊤ᡠo:ᨵ`abq`abrsZt20300320uZt5450455rs25750775,775X20X450-5X300
2-᪷3⊤ᦪ34w=—yzᔣ"|15.968,ᵫw}10.828,~Zt^ᨵ`abᨵᐵ"ᑨ~┯Ḅឋ<0.150.100.050.0250.0100.0050.001ko2.0722.7063.8415.0246.6357.87910.828A.0.1B.0.05C.0.01D.0.001IᫀDK+᪆ᵫ⚪"^>10.828,᪷3▬⊤4ᑨ~Zt^ᨵ`abᨵᐵ┯Ḅឋ<0.001.10.2018ḕO᝞Ḅ\ᡃ2014X2015Xᜧ¡¢GDP£s¤¥¦§᳛"©mª«¬Ḅ\

85■GDP£iH¥¦§᳛®f¡¢¯JGDP£s¤¥¦§᳛®y¡¢¯°GDP£s¤¥¦§᳛®¡¢—GDPu±²£itl¥³ᑴA.2015XGDP£s¥´2014X¤µ¶ᨵ·ᓣḄ¹ºB.»&¼2014X"2015X®¡¢&GDPḄ¦§᳛½¾µ¿C.»&¼2014X"2015X®y¡¢&GDPḄ¦§᳛½¾µ¿D.»&¼2014X"2015X®f¡¢&GDPḄ¦§᳛½¾µ¿IᫀBK+᪆ÀNÁ©Â"ᨬÄᩩÁ"Æ⁐ᩩÁᡠᓰḄ¥½¾¥ᩩÁᡠᓰ¥⌕ᜧ"ᓽ»&¼2014X"2015X®¡¢&GDPḄ¦§᳛½¾µ¿"ᦑ⌱B.11.&SÌÍÎÏᙠÑÒ9ÓᦪÎÔÕḄᡂ×ᓫᑖÙÚÛs4ᑮ᝞mᢚ6.m☢ᐵ¼Ì¤ÎḄᦪÎᡂ×Ḅᑖ᪆"¬Ḅᦪ<

86জᵬ¤ÎḄᡂ×ᢚ6ᐹᨵ´àḄ&áឋ"ᦑâᙳᡂ×<130ᑖãঝ᪷3ᵬ¤Îᡂ×ᢚ6åæḄᦪ3ÙÚÛs"çsè¤Îᙳᡂ×ᙠéê110,120ᑁãঞí¤ÎḄᦪÎᡂ×ὃÕÓïᐹᨵ¥´½¾Ḅ6ឋ»ᐵឋ"ð<¬»ᐵãটí¤ÎᙠÑÒòÓÔóḄᨬᑖᨬôᑖḄõöN40ᑖ.A.1B.2C.3D.4IᫀCK+᪆জᵬ¤ÎḄᡂ×ᢚ6ᐹᨵ´àḄ&áឋ"ᨬ130ᑖ"ᙳᡂ×<ô¼130ᑖ,জ┯÷ãঝ᪷3ᵬ¤Îᡂ×ᢚ6åæḄᦪ3ÙÚÛs"çsè¤Îᙳᡂ×ᙠéê110,120ᑁ"ঝ¬ãঞí¤ÎḄᦪÎᡂ×ὃÕÓïᐹᨵ¥´½¾Ḅ6ឋ»ᐵឋ"ð<¬»ᐵ"ঞ¬ãটí¤ÎᙠÑÒòÓÔóḄᨬᑖᜧ¼130ᑖðᨬôᑖô¼90ᑖ"ᨬᑖᨬôᑖḄõöN40ᑖ"ᦑট¬.ᦑ⌱C12.2016ᓅùSÎ᪥ûüýḄþÿ
30ᓫ⚗ᑖᡂ⚜
▤.⊤10Ḅ⚜ᡂᐸᨵᦪ!".#$12345678910%&1.961.921.821.801.781.761.741.721.681.60'ᓫ(:*+3063a7560637270a~1b65'ᓫ(:,+ᙠ.10/ᐭ%&Ḅᨵ8123/ᐭ%&
30Ḅᨵ614᝕+A.2$/ᐭ30B.5$/ᐭ30C.8$/ᐭ30D.9$/ᐭ307ᫀB9+᪆ᵫᦪ=>/ᐭ%&Ḅ811g8$ᡠ@/ᐭ30Ḅ61◤⌕C1g8$Dᦪ᣸#F=>G3,6,7$HI/J᜜31◤C63,460,63,஻M1NOᑖPQR63ᑖḄ1S/ᑣ60ᑖḄ1UV/ᐭWXYZ[

87ᡠ@63ᑖH/.ᦑ⌱B.13.2018ᜧ_!`+abᐳᨵ361d$ᑖe1,2,3,…36.gᵨijP᪵ḄlmPQMno4Ḅ᪵pq>d$3,12,30ᙠ᪵prs᪵ptᨵMd$u.7ᫀ219+᪆ᵫvijP᪵OᑮḄd$xᡂyzᦪᑡ|}=9,ᡠ@~z9,|d$3,12,30,ᡠ@Gd$12+9=21.14.2018ᓭ!`+CaḄaDPQ1000oDḄM⚗oᢣ᪗ᵫoOᑮ᝞ᡠḄ⚣᳛ᑖlᎷ.⚗ᢣ᪗ᙠ85,215
ᑁᑣ.⚗ᢣ᪗ᔠ.Dᙠ.⚗ᢣ᪗Ḅᔠ᳛.7ᫀ0.799+᪆.ᢣ᪗ᙠ185,215
ᑁᑣ.⚗ᢣ᪗ᔠᵫ⚣᳛ᑖlO.ᢣ᪗ᙠ185,215
ᑁḄ⚣᳛0.022+0.033+0.024X10=0.79,ᡠ@.Dᙠ.⚗ᢣ᪗Ḅᔠ᳛0.79.15.᝞uaa¡100ᡝ£¤2015¥ᨴ§ᙳᵨ©o'ᓫ(ªtḄ⚣᳛ᑖlḄM«ᑖᑣ¡2015¥Ḅᨴ§ᙳᵨ©oḄ(ᦪḄM7ᫀ2.019+᪆ᵫ⚪=>NxḄ⚣᳛®,0.04,0.08,0.15,0.22,0.25,|¯NxḄ⚣ᦪ®,4,8,15,22,25,ᵫ(ᦪḄ&°±uG50ᦪWG51ᦪḄ²³§ᙳᦪ´µxḄ

88⚣ᦪ
4+8+15+22=49,ᡠ@(ᦪuGNxGIᦪWG2ᦪḄ²³§ᙳᦪ,(ᦪu᝞+2+±X(2.5-2)D2.01,ᦑ(ᦪḄu2.01.16.(2018·¸!`)a᪥»¼“᰿ᡃÀÁ”ÃÄ9(ÅÆÇÈ2ᡭᑖḄᑖᦪ᝞ÊËᡠ.ÌᑖᕒᙠÎᣵMᨬÑᑖ
MᨬÒᑖF²O§ᙳᑖ91,Ó᪶ᕒᙠÓ᪶3ÕgᨵMᦪÖᙠÊË×mØÙRÌᑖᕒ²×ÚᑣᦪÖx=.8899923x214Mᫀ16+᪆ᵫ⚪Û>ÎᣵMᨬÒᑖ88,RᨬÑᑖ943ÎᣵᨬÑᑖ94,ÜḄ7ᑖᦪḄ§ᙳᑖu91,ᓽ;X(89+89+92+93+90+x+92+91)=91,9Ox=lßRᨬÑᑖ(90+x)ᑖÎᣵᨬÑᑖ90+x,ᑣÜḄ7ᑖᦪḄ§ᙳᑖußX(89+89+92+93+92+91+94)#91,àáâ⚪Û.12+4ᑖ⚗9?@AB1.q>a,bã☢åᑡæàçèḄu()A.Hêᙠ§☢a,ëOa஻a,b//aB.Hêᙠ§☢a,ëOa,6WaᡠᡂìíyC.Hêᙠ§☢a,ëOaUa,D.Hêᙠ§☢a,ëOa,bWaḄîïíyMᫀC6+᪆ᵫbã☢å>ᙠAᙠðñòQMó0(àᙠm6)ôó஺ᑖeöa,bḄ§÷åᑣᵫôó஺Ḅa,6Ḅ§÷åè&M§☢a,ëOa஻a,b//a,ᦑAçèßᙠB¡b¢b'Waíø|´è&M§☢a,ᙠaöa,b'ᜳìḄ§ᑖåÈú=@öûᩩ.ôì§ᑖåýW§☢aᚖḄ§☢ëOa,b'W§☢ᡠᡂìíyì§ᑖåᨵᩩᡠ@ᨵ§☢ÿ
.ᦑBᙠC“bᚖᙠ☢a,aua,b±a,ᦑC┯ᙠD☢a,6ḄᚖḄ

89ᚖᚖḄ☢ᑣ☢a஻6aḄ#$%&ᦑD.ᦑ⌱C.2.2018()*+,-a,6./01Ḅa,᜛.1Ḅ☢ᑣ3ᑡ56ḄSVA.a//b,bUa,ᑣa஻aB.aUa,bufj,a஻᜛ᑣa஻6C.aC.a,bC.a,a//fi,b஻᜛ᑣa஻᜛D.a//0,aUa,ᑣa஻£MᫀD6+᪆ᵫ“6./01Ḅa,“.1Ḅ☢8,ᙠAa//b,bUa,ᑣ.஻஽ᡈaUa,ᦑA┯;ᙠBaUa,bu°,a//p,ᑣa6=ᡈ☢ᦑB┯ᙠC“Ua,bUa,a//fi,h//p,ᑣa᜛%>ᡈ=ᦑC┯;ᙠDa஻?aUa,ᑣᵫ☢☢=ḄឋAa஻᜛ᦑD.3.2018•CDḕFG᜜IJK᪥*+,᝞NᙠOPQ8஺£,T48©஺|EVWḄᵨ/,E,GḄ☢Z[\OPḄ3]^ᑖᑣᒕabcPḄde,fN.d,CDMᫀA6+᪆g஺hḄijkQiGi,☢4FGEVZ☢.᝞Nᡠmᡠ
n]^ᑖḄde,fN᝞A⌱⚗ᡠmᦑ⌱A.

904.d2018᧎*+,TvbcP᢬[^ᑖxḄyfN᝞Nᡠmzᐸde,fN|}d~,fN.ᵫyvV2Ḅyᡂᑣ\bcPḄ⊤☢Vd,A.13ᐔB.12ᐔC.11ᐔD.2ᐔMᫀB6+᪆ᵫyfN8\bcP.Tvᙊᑁ^᢬[Tvᙊ┵.ᙊḄn☢]V1,3☢]V2,V2,ᙊ┵☢VᙊḄn☢⚔Vᙊ☢Ḅᙊ.ᙊ}☢Vᐔd1+2,X2=6ᐔ3☢☢VᐔX2?=4ᐔᙊ┵Ḅ}☢VᐔX1X2=2ᐔᡠ
\bcPḄ⊤☢V6ᐔ+4ᐔ+2ᐔ=12ᐔ.5.d2018□ὃ,¢bcPḄyfN᝞Nᡠmᑣ\bcPḄPVd,£,fN⚟~,fN¥fNMᫀA6+᪆᪷§⚪ᡠ©ḄbcPḄyfN
ᑮ\bcP.ᵫOPᑗᒘᡂḄ,®OPV—SCQig4hḄg஺©ḄN,\bcPµ.OPᑗ[TvyW┵D—MNDஹ¶xᒕaḄ^ᑖᦑᐸPVK=23—1x|x1X1X2=y.6.ºᨵ¼½VজঝঞḄyvyW┵d☢ÁÂÃ,¥fNᑖÄVN1ஹN2ஹN3,ᑣÆÇᙠTv}☢È☢É%ᚖḄyW┵Ḅᡠᨵ¼½.d,N1N2N3

91A.জB.®@C.ঝঞD.জঝঞᫀB"+᪆᪷§⚪ÊyvËPbcN᝞NᡠmÌᵫNT}☢48஺,/OC☢ᚖ,ᵫNÍ☢/CEᚖÎ☢ᵫNy8Ï}☢☢ᚖ.7.2018•Ð)*+,ᙠyWÑA\B\C\~ABC,A\B\=3,81G=4,A\C\=5f/=2,ᑣᐸ᜜kᳫᑁᑗᳫḄ⊤☢ḄÓÔVd,29Õ19-29c“AA.ÖC.~2D.29ᫀA"+᪆᝞N1,ᑖÄg/C,GḄG,H,jkG",gG”ḄO,jk04ᵫ⚪Ê—AτC|,ᓽØSGVyᑣ஺V᜜kᳫḄᳫ0/V]ᑣR=OA=,+Ù=Ú;᝞N2,yWÑḄZ☢ᑣZ☢yḄᑁ.\yWÑḄᑁᑗᳫḄᳫZ☢yḄᑁᑗᙊḄ]/•=3+—5=1,Û.ᑁᑗᳫḄ],ÜVRÌr=ÝÌ2,ᑣᐸ᜜kᳫᑁᑗᳫḄ⊤☢ḄÓÔVÞ=8.2018•ᓭà*+,á8E,F,H,GᑖÄ.â☢P48CZ
W48,BC,CD,£%nḄ,

92ä/E=£8,BF=FC,CH=2HD,AG=2GD,ᑣ3ᑡ56┯Ḅ.d,A.ZC஻☢EFHB.80஻☢ER7C.EG,FH,8஺%>Î1TD.FE//GHåᫀBç+᪆éÎA,EA=EB,BF=FC,CH=2HD,AG=2GD,ᑮG“஻/C,EF//AC,WACQ☢EFH,ᦑ4c஻☢EFH,⌱⚗A.éÎB,ÜV8஺|i“=äêᩩᙠ1T☢ᑁᦑᑮê%>ᑮ8஺☢EFG.%>Ḅᐵí.⌱⚗B.éÎC,ᵫA⌱⚗îᔠ=Ḅð⌴ឋᑮG஻஻£F,ᑣE,F,G,bâᐳ☢äVóôEG|F”%>Îᑣ஻ᙠ”Ḅônᦑᙠ☢88ᑁ1ᳮ"Ûᙠ☢ᑁᦑMø\ᙠêv☢Ḅ>nᓽᙠ8஺nᦑù.⌱⚗C.éÎD,ᵫ⌱⚗A,C8⌱⚗D.9.᝞NᡠmâW┵S-N8CZ
Ḅ☢VO5஺☢48஺1,ᑣ3ᑡîúḄ.d,A.AC±SBB.N8஻☢SCOC.SZ☢S3஺ᡠᡂḄ&ÎSC☢S8DᡠᡂḄD.N8SCᡠᡂḄ&Î0c"ᡠᡂḄåᫀDç+᪆éÎ⌱⚗A,ᵫ⚪Ê5£>_14஺,/6'_18஺,5஺05஺=஺/d2_1☢$8஺,ᦑ/஺_158,ᦑAéÎ⌱⚗B,'QAB//CD,/8Q☢SC஺Í/8஻☢SCO,ᦑBéÎ⌱⚗C,ᵫéýឋ8£4☢S3஺ᡠᡂḄSC☢S3஺ᡠᡂḄ%&ᦑC.10.᝞NᙠyWÑ/8C—81clá8N3C4=90஺/Ó1C=6O஺/C=4,E4AlḄiVḄ”ᙠþC4inä”=3HC,ᑣþᑗḄVd,

93B,AcA.2sB.4C.V13D.3ᫀC+᪆ᵫ⚪AB=8,஺஻/844]஺஺”ᑣ஺"NE%FD=<4B=4,&'=*=3ᡠ+Z-"஻/CZFDH=60°,nCDA3DH=^AC=3,ᵫ/01ᳮ3F//=A/42+32-2X4X3XCOS600=A/T3,ᦑ⌱C.11.ᡃ:;<ᦪ>?℉ABCDEF%“HIᙊE”KLMNOᦪ+ᓝQRSBTU,ᡠ3HIV◀SᓽIᙊY.“HIᙊE”Z[\]^_ᳫḄbNᓃdᐸfY"ḄUghijkjᵨmnoᵨUpqiḄhijk᪷sᐔ=3.14159…ᑨyzᑡhijk%ᨬ}~ḄUg-A.⚶¦§¨B."ᖾ31153/71C.d=\©pD.dyªPᫀD+᪆᪷sᳫḄbNjk/=1ᵯ7txdߟ«,⌱⚗%Ḅᦪ"1ᑣ"=,⌱⚗A<ᐭ3ᐔJ஺6=3.1,⌱⚗B<ᐭ3ᐔ==3,⌱⚗C<ᐭ3ᐔ=*=3.2,]]X6⌱⚗D<ᐭ3=3.142857,

94D⌱⚗hᑍḄᦑ⌱D.12._ABCD"ḄVRi_L☢ABCD,QC//PA,¡¢☢f£஺஺R1ᡠᡂḄ¥"30஺ᑣ¦┵஺UZ8CD᜜ᳫḄ⊤☢N()125¬4஻125-125A.2■ᐔB.25ᐔC.7FD.-yᐔMᫀB6+᪆®"+☢/BCZ),QC//PA,ᡠ+QCL☢N8C஺_¡¢☢f£QD_R4ᡠᡂḄ¥ᓽNOQC,ᡠ+NOQC=30஺WCD=¬,ᡠ+QC=JT1ᵫC8,CQ,8¯¯ᚖfᡠ+¦┵஺U/8C஺Ḅ᜜ᳫḄfY±+C8,CQ,CD"¦ḄVbḄb²¥£¦┵Q-ABCD᜜ᳫḄ³Y"R,ᑣR=|,ᡠ+᜜ᳫḄ⊤☢N"4ᐔ(|)2=25ᐔ13.᝞µᡠ¶஺஺ḄfYᡠᙠḄ☢Cᙊ¸U¡NZBC=30஺PA=4B,ᑣf£PC☢/8Cᡠᡂ¥Ḅᑗ".Mᫀ26+᪆®"+☢ABC,ᡠ+4c"º£PCᙠ☢45C¸Ḅ»¼ᡠ+/஺1ᓽ"PC☢N8CᡠᡂḄ¥.ᙠRtZ\R4C%AC=^AB^PA,PAᡠ+tanZPCA=~r^=2.14.᝞µᡠ¶ᙠf½¦¾48cU81G%¿¦441_L☢A8C.À/8=/C=44]=l,BC=ᑣ¢☢f£4cSGᡠᡂḄ¥".Mᫀ60°6+᪆®"ÁÂb¦¾BC஻B\C\,ᑣ//C8±¢☢f£CSGᡠᡂḄ¥ᙠ

95f½¦¾ABC-ABCi%¿¦44|_L☢ABC,AB=AC=AA=\,8C=ÆᑣBA\=X/+ᖪ=M,CAI=W#+AC2=®ᡠ+Ç8C4½¥ᦑ¢☢f£ᡠᡂḄ¥"60஺.15.2018•ᓭÊËÌ-_½¦Í/8C-481GḄ¸ஹzÑᑖÓ"34Ô"7,ÀÕ½¦ÍḄQg⚔ᙳᙠᳫ஺Ḅᳫ☢¸¡ᳫØ஺ᙠ½¦ÍN8C—481GᑁᑣᳫOḄ⊤☢N".ᫀ100n+᪆®"½¦Í/8C—48IGḄ¸ஹzÑᑖÓ"34L,ݽ¦ÍḄ¸ஹzÑ☢Ḅ%ØᑖÓ"E,Eipᑣ½¦ÍḄÔ"h=EEi=7,ᙠ¸zÑ☢Ḅ½¥%22Þ3,^\E\='^A\D\=4,ᑣᳫØ஺ᙠf£EE߸¡³Y"R=O4=0ᡠ+"05+32=>0ã+42,¡of+Zg=7,3OE=4,ᡠ+&=½41+32=5,ᡠ+ᳫ஺Ḅ⊤☢N"5=4ç?2=10-ᐔ16._½¦┵OT8C%A,B,C½ᙳᙠᳫØ"஺Ḅᳫ☢¸¡ZB=8C=1,ZABC=120஺Àᳫ஺ḄbN"êᑣ½¦┵஺U/8CḄbN.ᫀᙶ+᪆½¦┵O—8C%A,B,C½ᙳᙠᳫØ"஺Ḅᳫ☢¸¡N8=5C=1,ZABC=120஺,ᑣ4c=,••-5A^=1xiXlXsin120஺=ᙶᳫ³Y"R,ᵫᳫḄbNᓃ=ò3=ê,3R=c4.Ç/BC᜜ᙊḄᙊØ"G,.•.᜜ᙊḄ³Y"&4=2ó0஺=1OG=ylR2-GA2=yj42-\2=y[i5,½¦┵O—ABCḄbN"

96OG=qX*~12+4ᑖ⚗10CDᙊ1.(2018•⋰□öẆ)_(1,2)øᙊCLx2+y2+kx+2y+k1=0,ᙊCḄᑗ£ᨵ¯ᩩᑣmḄÝü()A.RB.(—8,ýAýØ,஺)ᫀC+᪆ᙊcL+ᓶ+0+1)2=1-ÿ
pᨵᩩᑗ,+4++4+>0,ᡠᙠᙊ᜜j]_Q>02v5.2v5AO/B&'()(ீ+,(2.(2018•1⃬34)678ᙠᙊC:f+y2-4x-2y+4=0@ABᑣ8ᑮE/:%-2-5=0ḄIJḄᨬLMN()rA.4B.LC.V5+1D.V5-1QᫀD&+᪆ᙊC:X2+/-4X—27+4=0Uᓄ
(x-2)2+(y—1)2=1,ᙊ+C(2,l),YZ
1,|2(2(5|ᐜ]ᙊ+ᑮEḄIJ^_1=L>1ᑣᙊ@(8PᑮE/:x—2y—5=0ḄIJḄᨬLMNL(1.3.(2018•bcde)67E/:y=A(x—l),ᙊC:(x-l)2+/=r2(r>0),fghiᑡklm⚪:PiQVZrSR,/rCst:Pi-3GR>/rCsᑗvP3:Wr>0,/rCstvP4:3?-o>0,/rCsᑗ.ᐸz{m⚪
()A.PlpP3B.PipP4C.P2,P3D.Pi,pA

97QᫀA&+᪆
ᙊCN|1,0}
ᙊ+r
YZḄᙊE,N8|1,0},~᳛NḄEᡠᔆMᨵEᙊ+ᡠᨵVArGR,Vr>0,ᨵ/rCstᡠ{m⚪ᨵ“P3.4.|2018,ᓅḕ⊝⎃zẆ}E/:஻a+஻}((஻=0|஻£0}ᙊC:|x-3}2+஺-2}2=4Ḅᕜᑖ
2:1ᑖᑣE/Ḅ᳛
|}A.0ᡈrB.0ᡈ4(4C.(¡D?QᫀB&+᪆ᵫ⚪£7E/ᙊᑖᡂḄᑖz¥¦ᡠ§ᙊ+¨
©ªᙊ+
8|3,2},YZ
2,ᑣᙊ+ᑮEḄIJ
1,|31+2«((¬ᓽ®T?r&'=0ᡈ;=_=ᡠE1Ḅ᳛
ᡈ*5.|2018²ᓭ´ᜧ▬zᨴὃ}rᙊ+&-2}2=2sᑗ~ᙠᙶ᪗¼@½Is¾ḄEᐳᨵ|}A.2ᩩB.3ᩩC.4ᩩD.6ᩩQᫀB&+᪆EÁ8ÂÃÄÅ
᜛=ᑭᵨ8ᑮEḄIJ¾ÊYZU]'4=±1,ᓽEÄÅ
>=■;EÍÁ8ÂÃᐸÄÅ
2+5=15#0},ÏᳮU]'஻=4,EÄÅ
x+y=4,ᡠÑᔠ⚪£ḄEᐳ3ᩩᦑ⌱B.6.|2018•ÕÖḕ×ØÙÚÛẆ}67ᙊO1ḄÄÅ
f+y2=i,ᙊO2ḄÄÅ
|x+a}2+Ý=4,᝞ßàlᙊᨵ~áᨵ(lâᐳ8ãä஺ḄᡠᨵM᪀ᡂḄæᔠN|}A.{1>-1,3,-3}B,{5,-5,3,—3}C.{1»-1}D.{3,—3}QᫀA&+᪆d=z\a\=2+1=3ᡈ1=Ï=2—1=1,

98ᡠ஺=1,—1,3,—3.7.(2018•ᓅḕ⊝z34)ê☢ᑁí84,8îḄIJ
2,B8r8ḄIJïð
ᖾòA,8ÍᐳÂ☢óḄᨬᜧMN()A.2ᔾB.ᖾD.õQᫀA&+᪆ö48Ḅz8O
ᙶ᪗Á8Z8ᡠᙠE
x¼ö48ḄᚖEêᑖ
y¼øù᝞úᡠûḄᙶ᪗üᑣý(1,0),8(-1,0),ÃP(x,y),ᑣþÿ4=ᖾᓄ(x+3)2+/=8,ᑮAB(x)ᨬᜧR48Ḅ☢ᨬᜧ!ᵫᙊḄឋ%&/\PAB☢Ḅᨬᜧ!':X2X26=2&.8.-./(2,3),5(-3,-2),12345>+158=0:3;Z8=>ᑣ8Ḅ!AB()C31(31A.|_4'2JB.1-8,-Ju[2,+8)C.(-8,1]U[2,+8)D.[1,2]OᫀBR+᪆23T5y+1—8=0ឤX(1,1),3—1—2—13kpx-2]=2,kpB-j[=Z123kx—y+1—k=0:3;AB=>[ᔠ]^(]ᶍ)`ᡈ8b2,ᦑ⌱B.9.-.஺(51m),PBᙊCi(x—a)2+(y—2஺+4>=4klm513;P0ḄnMḄopqr'x2+(y-l)2=l,ᑣtḄ!'()A.1B.2C.3D.4

99OᫀDR+᪆uP1x,y
,P0Ḅn'M1x,%w,0X—1ᑘ=}5,ᑣᵫnᙶ᪗z{y+rnJ0=^~'MXo%wᙠᙊf+Q—1w2=1k,ᡠI+F=lᓽ(x-])2+Q+m_2)2=4.qr:qr(x-a+஺-2஺+4)2=4(1=1,&1,2a—4=—(w—2),Rm=4.10.2018ḕ□ᓭnw1ᙊ2+/+54-10=0kᨵ¡¢Z£Ḅᑮ23/iax+¤=0Ḅ'2ᔾᑣ23/Ḅ¦᳛Ḅ!ABwA.[2-^3.2+¨]B.[—2—^3,¨-2]C.[-25¨2+¨]D.[-25¨2—73]1ᫀBR+᪆ᙊª+/+54w-10=0&ᓄ'x+2w2+y—2w2=18,ᑣᙊ«'52,2w,¬'3^2,ᑣᵫᙊx2+j^2+4x—4y—10=0kᨵ¡¢Z£Ḅᑮ23/iax+᝞=0Ḅ'2ᔾ&ᙊ«ᑮ23/iax+by^0ḄdW3L—2ᔾ=°,|—2஻+26|ᓽᑣ஻?+/—4஻bW0,1³=0,ᑣ஺=0,ᦑZᡂµ,ᦑ6W0,ᑣk{&ᓄ'1+¶-X⛲W0.ᵫ23/Ḅ¦᳛k=5¸&.k{&ᓄ'd+4A+1W0,R525—2+A/3.11.2018ᵞᾓḕ¼ᓅ¾ᜧ▬ÀnÁÂw123/i4+Ã+1=0ÄÅÆᑖᙊ/ix2+

100/+4x+2y+l=0ḄᕜÉᑣ(a—2)2+(/)-2)2Ḅᨬ¨!'()AÊB.5C.2⎅D.10MᫀB6+᪆ᵫ23ᦪ+¤+1=0ÄÅÆᑖᙊMḄᕜÉ&.23ÌXᙊtḄᙊ«ᵫᙊḄqr&ᙊA/Ḅᙊ«ᙶ᪗'(52,—1),Íᐭ23qrax+by+1=0&2a+b-1=0,Ïᵫ(“52y+(6—2)2⊤Ò(2,2):232a+h—1=0kḄl5ḄḄÆq12X2+2-11Ôᵫᑮ23Ḅz{d=)5Ó51=L,ᡠ(஻-2+(6-2Ḅᨬ¨!'Õ=(¨)2=5.12.(2017ᐰ×III)ᙠØÙ/8CZ)nAB=1,AD=2,ÚPᙠC'ᙊ«Û:8஺=ᑗḄᙊk.1ᡂ=11&+஻ᔊᑣ2+஻Ḅᨬᜧ!'()A.3B.2^2C.y[5D.2MᫀA6+᪆N'ᙶ᪗ßᑖà4),48ᡠᙠ23'xy,áµ᝞]ᡠÒḄ2âᙶ᪗ãᑣ஺ᙶ᪗'(2,1).u8஺:ᙊCᑗäE,åæCE,ᑣCEJ_8DVCZ
=1,BC=2,Q.BD=y/l2+22=yf5,„„BCCD22^5EC~~Bi5~~^5~5'ᓽᙊCḄ¬'⁠è.Ḅopqr'(x-2)2+(y-l)2=*21/5°xo=2+5cos8,uᑣ)ᑣÔ஺'éᦪw,2ê.,,yo=1-+~sinU

101ë4P=(%0,ì),45=(0,1),40=(2,0).í=î+஻«=2(0,1)+"(2,0)=(2஻A),஻=•0=1+ïcos2=yo=1+^^sin᜛ñ{=t2+"=1+^^sin0+1+ïcose=2+sin(e+e)W3(ᐸnsine=ᙶcos8=^^)JrÛó஺=᱇+2E5᝞/GZ2+஻ᨬᜧ!3.ᦑ⌱A.13.u23¨(a+l)x+3y+2—a=0,2322x+(a+2)»+1=0.1õ,õᑣöᦪ”Ḅ!',1õ஻/2ᑣöᦪ஺Ḅ!'.Oᫀ~1-4R+᪆T12,ᑣ2(a+l)+3(a+2)=0,᦮ᳮ&5a+8=0,OúRᐵäöᦪaḄqr&஺=5³,rg+l32-aül\//lipᑣ~~~=.+2#~\5ý&஺=—4.14.(2018þÿ〉
ឋὃ)ᱥ=8xḄᯖᙊy+2=0ᑗḄᙊᨬᜧ☢ḄᙊḄ.!ᫀ(X-2)2+/=8#+᪆ᵫ⚪)*+ᙊḄᙊ,(2,0),-./M(0,2)Ḅ012345ᚖ7ᐸᙊᑮḄ:;ᨬᜧᓽᙊḄ=>ᨬᜧ?723ᙊḄ☢ᨬᜧ=>/-=^/(2-0)2+(0-2)2=2^2,ᡠ☢ᨬᜧḄᙊḄ-(X—2)2+=8.15.ᙠD☢Eᙶ᪗HxIᙊMJx2+J—6x—4y+8=0xKḄLMNᑖPQB,ᐸ/ᙠ3ḄST48>ḄᙊUᙊN,./V/ᙊW,ᙊNᑖPNYC,D±y.Z஺\ZCḄᑣ/Ḅ.!ᫀx+2y—4=0#+᪆ᵫ⚪)^ᙊMḄ(x—3)2+(y—2,=5,_᜛=0,^x=2ᡈx=4,ᡠ/(4,0),5(2,0).

102ᑣᙊNḄ(x-3)2+=i,ᵫ⚪)^/Ḅh᳛jᙠᡠk/J4).ὶn/Ḅ4ᙊ"Ḅpqy,^(1+*u2—(8᮱+44+6)x+16z+16A'+8=0,8~2+4+6ᡠ4+x0=-1+1জ[(X—3)2+>>2=1,,ὶn^(l+*)f-(8*+6)x+16*+8=0,[y=kx-4k,,8"+6|ᡠ4+x£)=]+/pঝ⚪)^xc+4=2xD,ঞ#জঝঞ^=—qᡠ/Ḅx+2y-4=0.16.+ᙊGJ(x—2cos<9)2+(y-2sin4=1ᙊC2Jᑡ:জY)ḄᙊGᙊ஺2᜜ᑗ¢ঝY)ḄᙊGᙊC2ᨵ¤ᩩ¦ᑗ¢ঞ1=§ᙊG¨/J©X—ᔆ1=0«^Ḅ¬ᵫ¢টZP,஺ᑖPᙊC1ᙊC2Ḅ0ᑣ|,஺Ḅᨬᜧ±4.²³´⚪Ḅµ¶.!ᫀজঞট#+᪆Yজᡃ¸+⍝LMᙊ᜜ᑗº»YLMᙊḄᙊ:¼½ºYLMᙊḄ=>¾4,ᵫ⚪)^ᙊGḄ=>1,ᙊᙶ᪗(2cos2s¿ᙊ஺2Ḅ=>1,ᙊᙶ᪗(0,0),ᡠLMᙊḄᙊ:ஹ(2cos6—0Á+(2sin6—0,=^4cos26>+4sin26>=2.ÃÄLᙊḄ=>¾41+1=2,ᡠY)ᙊG4ᙊQ᜜ᑗᡠজ²³¢Yঝᵫজ^Lᙊ᜜ᑗᡠLᙊÆᨵÇᩩ¦ᑗᡠঝ┯É¢Yঞ?7ᙊGḄJ(X©Ê+6-1y=1,ᦑᙊC|Ḅᙊᙶ᪗(©1),ᡠᙊᑮ/Ḅ:;-ÌW)2+(-i)22ÃÄᙊGḄ=>1,ᡠᐸᡠ«Ḅ¬2\^Ï(Ð=©ᡠঞ²³¢Yটᵫজ^Lᙊ᜜ᑗᡠLᙊḄḄᨬᜧ:;Ñ-LᙊḄ>¾4

103ÄGḄ>2,C2Ḅ>Ò2,ᦑ|P0|Ḅᨬᜧ±2+2=4.ᡠট²³.ᦑ²³´⚪Ḅµ¶জঞট.12+4ᑖ⚗11ᙊ┵GD21.2018•ᜧÔÕÖ×kØᙊCJ+=1Ḅ~ᯖ,,/Jy=fockW0
ØᙊCNY/,8LᑣÙὡ+ÛF|Ḅ±-Ü×A.2B.2^3C.4D.4#!ᫀC#+᪆kØᙊḄSᯖ,2,ÔÝQᔆ2,8,2,Ä|஺|=|0Þ|஺ß=|஺,2|ᡠ¤àáAF8F2-Dâ¤àáᡠ|5ᵨ=3&],ᡠ|ZF|+äᵨ=|4ᨴ+ឤ&|=2஻=4.222.2018•é□ëὃ×ì+íî=lg0
ḄSᯖᱥ/ÏফḄᯖðᔠᑣòíîḄᯖᑮᐸóôḄ:;ºYÜ×A⎅B.3C.5D.46!ᫀA#+᪆ÄᱥJ=12xḄᯖᙶ᪗Ü3,0
,⚪)^4+/=%ᡠ/=5,XV2ᡠíîḄ¶=1,ᡠᐸóôy=±᜼ᡠíîḄMᯖᑮóôḄ:;ᔊ=43.2018•ᖆøÕÖ×+P-ᱥJ=4x),஺-ᙊx—4
2+=1)ᑣù஺Ḅᨬ©±Ü×A.|B.3C.A/3+1D.2^3-1!ᫀD

1046+᪆k,Ḅᙶ᪗a”/,V_ᵫᙊḄÜX—4×2+/=1,*^ᙊᙶ᪗zÜ4,0×,.,.◍2=&/-4×2+”/=þ஻/-8+12N12,@.\R4\^2y[3,¢0-ᙊÜ*-4×2+=1).,•|,0|Ḅᨬ©±273-1.4.2018•ᱥJ=4xḄᯖᙊḄᙊ!ᱥ"#$N&!ᱥḄ'"#P,Q&()*+MNPQ,+ᑣ,+MNPQḄ☢/0A.1673B.12sC.4sD.3MᫀA6+᪆᪷9⚪;)*+MNP஺,+?@A஺BMCD@ᑮᙊᔆᑮ'ḄGH!ᑮ"NḄGH0JKḄᡠMḄMᙶ᪗3,QᐭᱥSTUMxVWSḄ"CDX@M3,2YN3,Z2[ᡠ|$77|=44|NP|=4,CDX@)*+MNP஺Ḅ☢/5=4X4Y=16Y.225._F2ᑖb0cd᜛Z1=130,6>0ḄgஹiᯖjklḄᙊ"mn©=bx#PPᙠrZs▲PQ"cdgv#஺(஺0wτḄxᑣycdḄH᳛ASB.A/5C.V5+1D.V5-1MᫀCx2+y2=c2,6+᪆ὶkST!ᙊḄSTbU=ᔠ஺2=/ᓝᡝ#rZs▲?@Pa,b
,cdḄgᯖQ—c,0,ᑣPQḄx0£,!1—yac஺ᙠcdWᑣ7Z=1,᦮ᳮ?@c?—2ac—4a2=0,ᓽJ—2e—4—0,

105@cdḄH᳛e>l,ᦑe=/+l.226.2018•cdCZ1=la>b>0Ḅgஹiᯖᑖb&,ᙊlḄᙊ"CḄiv#P,஺&(஺ḄZ¡ᑁ£60஺ᑣ஺ḄH᳛A.YB.Y+1¤ᫀC+᪆ᵫ¨©ឋ?0QKῪ¬£+(P0QḄZ¡ᑁ£60஺ᑣPQQ0K*¬£+A/\F\PQḄ¬¡ᑁ£60°,ZPFQ=120°,UP஺"xV#42ᑣ|42|=3222|=஺\R4\-yfic,¯°UᙠrZs▲ᑣP2c,Lc,QᐭcdST?@±—²=1..4c3c2-c2-a°ᓄ´@4c4—8a*+J=0,ᓽ4e4—8e2+l=0,@¶ᡈ/g¹º.6=W⌕¼½¹¾.7.ᙠᱥJ=xW஺ᙠᙊx+2+eZᨵ2=1Wᑣ|஺ḄᨬY½3A/5,0⌮,AA.—1B.-y-1C.2^3-1D.V10-1¤ᫀA+᪆UᱥWḄᙶ᪗ÄÅ.ᙊZÆ4!ᱥWḄḄGHḄÇS

106/=+,J+
$—42=$*4+2m2—8$+ÈÉ=/+2$2—8777+ᫀᑣf(஻?)=4($ZI)($2+$+2),ᵫËÌᦪ!ÎÌᦪḄᐵÐ?@ÌᦪᙠÑÒ(Z8,1)WᓫÕ⌴×ᙠÑÒ(1,+8)WᓫÕ⌴45ÙÌᦪḄᨬY½1)=ᵫÚÛᐵÐ?@|஺|ḄᨬY½8.(2018•᧎Ý)ᱥCy2=2px(p>0),ᙊMQ2^+y=p2>k/y—1^x—^(«W0),ÞWDßàá!Wâ&d"#YA,A,4)ᑣãZäåIK#()23A.-B.-C.pD.gPP"2¤ᫀB+᪆ᙊA/ᑖᓝ/=02ḄᙊᱥḄᯖæ0),lp.k/ᵫZçèᱥḄᯖ⌼0).UYê%),4(Yì)¯°UAீ0,ᑣX>2.2\A\A^\A\F\-\AF\=p-Qi+9=?Zᱏ,2|ï3/4|=|/4ᒴZ%ᵨ=@2+£Z0=ó2
y2=2px,22ᵫj_2@ôx2_p
M+2x+T*=0,ᡠᑴ+ö=÷2x□=0ᡠI¯iZùX\+X2-pPp2X]τ%2-X\X2-4

107ú,0ᓝᓝ2p2p2p2û2Z4Z49.2018•ýþḕ
╋᪥ὶὃᱥC/=2ᑁ>0,ᐸᯖ!ᔆḄ$/%ᱥ&A,B'!()*=3'(,ᱥC-.ᙠ!஻1x3-!NZ7,0lᐵ&$/56(ᑣ8ᱥḄᯖ!ᑮ:Ḅ;<=>A.4B.5C.'yD.6HᫀDJ+᪆ᱥ᜛2=2”3>0Ḅ:=ᔆx=O᝞QᡠS(T$ḄUVW=┦WY(ᑖ[!4B³,BQ11',ᚖ]=^(Q,!8`BDLAP%/P&!D,ᑣ|/P|=/1(\BQ\=\BF\,'Q\AF\=?l\BF]=^AB\,Q.\AP\-\BQ\=\AD\=\AF\-\BF}=^AB\,ᙠRt"BD(ᵫ,ef/8/஺=60஺('QAP//x3(h.ZBAD=ZAFx=60°,tnn60°—^^3»$/Ḅlm=^ᕣo9(qA/!ᙶ᪗=>᝞(yl,M

108tᐭᱥḄlmᓄwef3P2—40-84=0,Jfp=6(|}~),8ᱥḄᯖ!ᑮ:Ḅ;<=6.10.ᙊḄᐳᯖ!(PḄᐳ!(,ᑣᙊḄ<᳛Ḅᨬ}=()A.hBC.1D.y/2HᫀBJ+᪆qᙊḄ<᳛ᑖ[=ei(µ,qᙊḄ3=S(Ḅ3=(ᯖ;=c,^=▲ᑁḄᐳ!(J|PQ|+|PF2|=2m(ᑣெ^^¢£¤|=2ᦢ(Jf£^1|=஺1+஺2,|^&|="1—“2,ᡠ¨4c2=(a!+a)2+(«1—«2)2—2(a1+a)(«1—«2),cos®(22ᡠ¨4c2=(2-ᖾ°+(2+ᖾ)±,ᡠ¨4=1²³´2µ¶1ᒹ¸C\஺2\j¹஺2¹º2ᡠ¨6⍝2oᙶ(ᦑ⌱B.11.(2017ᐰÀI)q48ᙊ஺Â+\=13Ḅ'Ä!.)C-.ᙠ!MÆ]=120஺(ᑣᵨḄÈ}Ê()A.(0,1]U[9,+°°)B.(0,V3]U[9,+Ï=°)C.(0,1]U[4,+8)D.(0,S]U[4,+8)HᫀAJ+᪆lÐqᙊᯖ!ᙠx3-(ᑣ0Ï□Ï3,!M(x,y).!M`x3Ḅᚖ(%x3&!N,ᑣN(x,0).

109ᦑtanZAMB=tan(ZAMN+ZBMN)+x-x_D+D_2slM^/5+x-Xf+y2ߟ31-M-WØtanZAMB=tan120°=(,ᵫ5+5=1(efx2=3Jf^ÙØ0<[y|¶ᵫ1,ᓽ0<3^,WÝ(Þᔠ0<à<3Jf0ீmWL5&ᯖ!ᙠy3-Ḅãä(åᳮçefm29.ᑣèḄÈ}Ê(0,l]U[9,+8).ᦑ⌱A.lÐéT0<è<3Y(ᯖ!ᙠx3-(⌕ëC-.ᙠ!MÆ]N/MB=120஺,ᑣ᝞tan6(r=V5,ᓽ¸^L,Jf03Y(ᯖ!ᙠy3-(⌕ë஺-.ᙠ!MÆ]N/A/B=120஺(ᑣ£otan60°=S(ᓽᖛo(Jfà29.ᦑèḄÈ}Ê=(0,l]U[9,+8).ᦑ⌱A.2212.?5=1(0,b>0)Ḅñஹóᯖ!ᑖ[=Q,^2,P=óô-!(õ&ó⚔!)(÷PQ3Ḅᑁᑗᙊ1x3ᑗ&!(2,0).B`$/1%&/(8'!,)ë|/8|=/Ḅ$/ាᨵᩩ(ᑣ<᳛ḄÈ}Ê()A.(1,ᖾ)B.(1,2)C.ü+8)D.(2,+8)HᫀCJ+᪆\FiF\=2c(c*2=a2+b2),2

110q÷^^1^2Ḅᑁᑗᙊᑖ[1PF|(F1F2,^^2ᑗ&!G,H,I,ᑣ|PG|=|P7],|QG|=|/ᔣ(|^ÿ]=ᵫḄ2a=|PF,|-|PF|-|F,G|-|F7|^\FH\-\FH\,22[2ᔩ|+ᵬ2*=||=2ᦑ|F|/7]=c+a,\FH\^c~a,2ᡠ”(a,0),ᓽ”=2.()ᑮ+᪵Ḅ-./01/2Ḅ3456489:27)2ᑣ2I01/2Ḅ94ᔜ56K:(4,B),ᑣ2a=4,b>2,c=yja2+b2>2^2,ᡠḄQR᳛e=§T2.ᦑ⌱C.13.(2018•\]^_)`aRNᙶ᪗d:ḄeᙊCg:(1,h)iCḄKjᯖ:ᙶ᪗l(2,0),ᑣCḄ᪗mnol.pᫀf+y=lu+᪆᪷x⚪)PeᙊḄyKjᯖ:ᙶ᪗N(-2,0),ᑣ2a+2)2+1+^J(l-2)2+1=^^=2Dᡠ“=D|lc=2,ᡠ6=ஹ5—4=1,PᑮeᙊḄ᪗mnoln+J=L14.ᙠh☢1ᙶ᪗xOra:M2:0ᔠ2ᙊ+=1Ḅ5:Nl:"Ḅ''aRᢗ:”.প:M(l5)Ḅ“aRᢗ:”l;(2)K-9=1ᡠᨵ:Ḅ“aRᢗ:”᪀ᡂḄḄN.pᫀপ&]Qu+᪆প|0᪷=¡+(¢£=2,|CW]=1,

111ᡠ¥=3ᑣN:ᙶ᪗l§I2J-§2¨©2K5=1Ḅª«nolᵫ“aRᢗ:”ḄaRᢗ:Nᓫᙊᜳᙠ9ª«¯°Ḅ2X@²5Ḅ9³ᙊ´Kᩩª«Ḅ¶·lD|¸´l2x|nX1=º215.`:»&ᑖ½NC/x2-1=lS>0¨Ḅ¿ஹ3ᯖ:஺lᙶ᪗d::ÁᙠCḄ34iÂÃᵬ|F2|=2|OP|,tanNPBFiZ%ᑣCḄÈᯖÉḄÊEÌl.pᫀ§1,]u+᪆ᵫ|Q&|=2|OP|ÍPl1\Î/lÁÁ2=90஺tan/PF2Ái©4,ᓽ|PF,|24|ÁÁ2|C1^112+|Ï£2Ð=|ÑÐ2|P8|K|ÁÁ2Á2஺ÍP|Á£2|ீÓᵫ§|Ô+24+|ÁÁ2Ð=4°2ᓄl§|D+"¨2=2஺2—/×|°+஺2,ÍPcWØac>a=],ᡠcḄÈᯖÉḄÊEÌl§1,ᖛ.16.§2018•ÚÛÜݨÞᱥ=2./>0¨Ḅᯖ:làP,஺NÞᱥḄ9já:³PQḄa:lâgMãÞᱥmḄᚖᚖÃlN,0|MN|=|P°|,ᑣNPᔆ஺ḄᨬᜧEl.ᝅᫀ~u+᪆᝞êᡠëᑖ½gP,஺ãÞᱥmḄᚖᚖÃl4B,ì|Áí=2a,10fl=26,ᵫÞᱥP|□=|ᑓ|,\QF\^\QB\,ᙠðÎ/8QPa21MM=|1+10ᵨ=2a+2b,A\MN\^a+b.

1120P஺gᯖ:F,ᑣ|P2|=|P/q+|0Q=2a+2b,|VN]=a+b,i|"2=|Á஺|,••2a+26=a+b,/.a+Z>=0,ôᯠᡂö,•Á஺gᯖ:àV\MN\=\PQ\,Q.\PQ\=a+b9*NPFQ=஺,ᵫ÷øᳮP(஺+6)2=4஺2+4஻-8⊈05a2+ft2+2ab=4a2+4b2—Sabcos9,3a1+3b2—lab6ab—2ab1•••cose=¹N8ab=ºtanyB.ln(x2+2)>ln(j,2+1)C.UD.x3>/xy!ᫀD#+᪆Ox»,&'A,(x=)
y=*+,-.x>y,0tanx>tany1ᡂ.&'B,3ln
+2
>ln/+1
,ᑣ45'f+l>^ᡂ
(x=l,y=—2,
-.0/+7821ᡂ.&'C,(x=3,y=2,
-.x>y,0ᓰ:1ᡂ.1y&'D,(x*,
x3>y3ឤᡂ.x2~x,x20,2.2018•;<ḕᡂ>?@ABCᦪHx
=D᜻Cᦪ
ᑣg/*lgx
,x<02

Ḅ

113A.0B.—1C.12D.—4!ᫀcf—x,x20,#+᪆•.•Cᦪ"0=G᜻Cᦪ,k(x),x<0•\/(-2)=-/(2)=-(4-2)=-2,g(/(-2))-g(-2)=/(-2)=-2.e*+l3.Cᦪ(ᐸeJᯠ&ᦪḄLᦪ)ḄMNᜧO()!ᫀA5P,+1#+᪆Q*R)=1TU1eA'+l_er+l(ߟx)(l—er)x(ev—1)4")'ᡠW᜜)ᏔCᦪ
MNᐵ'yZ&[
\(x-*0,
Xx)-*+°0,ᦑ⌱A.4._`aRḄ᜻Cᦪ/(x)-.`3—x)+/(x)=O,b(xG(*|,0),
/(x)=log2(2x+7),ᑣ/(2017)4'()A.—2B.Iog23C.3D.-log52!ᫀD#+᪆d᜻Cᦪᐔv)-./(3—x)+/(x)=0,ᡠWf)=*43*%)=ᓻ—3),ᓽᕜl3,ᡠWQ2஺7)=")=*8*1)=*ᑗ25,ᦑ⌱D.f1—|x+II,X<\f5.Cᦪ/)=2ᑣCᦪ8ᡭ)=2op)*2Ḅqrsᦪ()[x-4x4-2,

114A.1B.2C.3D.4!ᫀB1—|x+11
X<1,#+᪆|}Cᦪ/(x)=-2,eḄMN᝞M'21--|x+1|,xl,
ᑣᦪ”Ḅ¯±()A.[1,2]B.[0,2]C.[1,+8)D.[2,+8)!ᫀAf(x*dy~1,xWl,#+᪆v^x)=[Inx,x>l,3f)·1)ឤᡂ
ᑣ<)¸X)Ḅᨬ¹
ᵫº8Cᦪឋ§&[Zᵫᑖ½Cᦪឋ§(1—a)2—IWlnl,0WaW2,¿À
1W°W2,ᦑ⌱A.7.(2018•ÃÄḕÅÆ?ÇᩲB)ÉCᦪᐔc)=ln(eஹ+er)+x2,ᑣÍQ2/8x+3)ᡂḄxḄ¯±()A.(-1,3)B.(—8,-3)U(3,+°0)C.(—3,3)D.(—8,—1)u(3>+°°)!ᫀD

115#+᪆dy(—x)=ln(e*+᮱)+(—x)2=ln(ev+e-Y)+x2=fix),ᡠWCᦪᐔr)ᏔCᦪ
\¹)ᙠ(*8,0)ÀᓫÔ⌴Ö
ᙠ(0,+8)ÀᓫÔ⌴×,ᡠWQಘ8:+3)Q|2x|>|x+3|,#Ûv—1ᡈx>3.ᦑ⌱D.8.(2018•ᜩÞßàá)Cᦪ40-.4^)+1=â■äs(xeå0
17,
æx)=x,3ᙠáç(*1
17Àèé;—m=0ᨵs1ìḄ᪷
ᑣᦪîḄ¯±()A.0,0B.J+8)C.0,3D.(o,3!ᫀD#+᪆(xG(-l,0],
x+lC(0,l],11XQx)=/a+i)_1=^+T-1=-^+7)ᙠì*ᙶ᪗ᑁ|}y=/(x),ḄMN᝞M,øùúû_r(-1,0),(ûr(1,1),
ü᳛f=2
ᵫMN
(0)1?@/8)AB),f3)/CDᑣF᜜)056ব6J8Ḅ“K$L-ᦪ”.NO-ᦪg(x)=!?#2Q02J8Ḅ“K$L-ᦪ”1ᑣRᦪSḄTLVQ()W481A.Z1T

116\+8D.(—8,4-00)^ᫀBc+᪆ᵫ⚪ghO1g(x)=|x3—yx2,:g'(x)=#—sᙠ56[0,2]89ᙠr1X(00,c@ᡃὃᑣRᦪSḄTLVQ10.(2018•□&')O᜻-ᦪ./(X)st>(l-x)=/U+x),ᑣ()A.-ᦪ)Q20ᕜḄᕜ-ᦪB.-ᦪ7(x)Q40ᕜḄᕜ-ᦪC.-ᦪHx+l)Q᜻-ᦪD.-ᦪx+2)QᏔ-ᦪ^ᫀBc+᪆᪷⚪g1()ᙠR8Ḅ-ᦪ/(x)Q᜻-ᦪ1ᑣst./(-X)+

117ᑣRᦪaḄTLVQ()A.(1,+8)B(0,|)U(1,+8)C.Q,1)U(1,+«>)D.(0,1)U(4,+8)MᫀC6+᪆y=8"—log,**஺_ᑣ8*=lo&x\°")=8*,g(x)=log(/,±Q⌕?-ᦪ³8'—1஺45>0§Ml)ᙠ56(0,¶8·ᨵ1¸◤-ᦪ/)º»)Ḅ¼½ᙠ56(0,¶8·ᨵ¾1¿a>lÀ1ÁᯠᡂÄÅ¿02=10&Ï1±Qc@*Ð1,ᦑRᦪaḄTLVQ஺>1ᡈ*a

118(x-2)2+4,20§"W1)ᡠøḄ(ᙶ᪗0^ᫀ(2015,2018)c+᪆¿x=2015À1,/(2015)=a2015-20154-2017=a°+2017=2018,.\7(*)=1-2஺15+2017(஺>0§0#1)ø((2015,2018).14.(2018ᓭüÐý)NORᦪx,ystf-siny=l,ᑣsiny-xḄTLVQ.^ᫀ1+^2]c+᪆ᵫsiny=l,h@siny=x2—1.si”þ[—1,1],ᡠX2—1£[—1,1],c@ᖾWxWᖾ.2.(5siny-x=x1=('")-7.¼ᔠ.pWxWy/l,^஺*~4'1+M■15.ᦪᐔV)ᑁḄX1X2|)=/2)ᨵX|=X2ᑣ#ᦪ$x)%ᓫ'ᦪ(᝞ᦪ᜜)=x+ᓫ'ᦪ,ᦪᐔr)=f-+ᓫ'ᦪ.ᑡ0⚪2

119flogx,x22,2জᦪHx5=j_=<2+ᓫ'ᦪ@ᔆ+CtX+1ঝE2ᦪ᜜5=---ᙠH0,+85K+ᓫ'ᦪ@ঞᦪ/HX5%ᐸᑁḄᓫ'ᦪXFWX2,ᑣ.ᓻ|5PQ25@টᦪS5+ᓫ'ᦪTᙠᐸᑁUᑣᙠᐸᑁVᙠX஺WᐸUᦪ/HXO5=0,ᐸYZ[Ḅ0⚪%.H\KᡠᨵZ[0⚪Ḅ^_5`ᫀজঞb+᪆ᵫ⚪eYfgḄ“ᓫ'ᦪ”Ḅjᦪ+ᓫkᦪlᦪm%ᓫ'ᦪ.n%x22$x5=log2XᓫkXV2yHx5=x—1ᓫkrᔠ⍝x5Ḅuvj/HX5+ᓫ'ᦪᦑ0⚪জZ[@x0⚪ঝyHx5=x+:+a,ᵫ<25=@65,j/HX5-+ᓫ'ᦪᦑ0⚪ঝ┯}@~0⚪+ᓫ'ᦪḄ⌮ᔲ0⚪ᦑX1^X2«q5W/HX25ᓽ0⚪ঞZ[@x0⚪ট(᝞/Hx5=x+ᓫ'ᦪTᙠᐸᑁU,ᙠᑁ-Vᙠ5WHxo5=O,ᦑট┯}`ᫀ%জঞ.16.jᦪ_/Hx5=sinx+2|sinx=,ᐵxxḄ/Hx5—“x5—1=0ᨵ.r2জ420/Hx5—W/HX5—1=0ឤᨵ᪷@ঝ04/HX5᝞/5-1=0ᙠO,2ᑁᨵ-᪷@ঞ஺20/Hx5—ಘ-1=0ᙠ06ᑁᨬᨵ9-᪷@ট/H5Ḅ51=0ᙠ0,6ᐔ=ᑁ᪷Ḅᦪ%¡¢Ꮤᦪᑣᡠᨵ᪷¤¥%15ᐔᐸYZ[Ḅr+.H\^_5`ᫀঞটb+᪆᝞uᡠ§¨S5=/,ᦑ©⚪ᳮb%ᐜ¬,-3-1=0Ḅbᯠ°±¨/Hx5=/ᓽḄ᪷Ḅ²³´ᎷeP—⊈/-1=0ᨵb”1,ᑣ“+=3“72=21,ᦑ¹/2Zº»ᯠº᪷¼ᦪ᜜5Ḅuv-½¾¿ÀÁᦑÂ◤ÄZ᪷¼uvḄÀÁ-ÅᎷeÆ%Z᪷ᦑ¿x.;=1,

120xজ»ᯠ┯}Â⌕ÈÉᜧË»ᯠ¼ᦪuv-½ᨵÀÁᦑজ┯}.xঝOWaÌ0,g),ᦑt\e1,3),ᦑ/(x)—g/(x)—1=0ᙠ0,2ᑁᨵᡈÐ-᪷ᦑঝ┯}.xঞᦑge0,+8),஺=04Ḅᨬ¹ÑÒ1.”=1~ᙠ0,6ᐔ=ᑁᨵ9-᪷@a>0~ᙠ0,6ᑁÔ᪷ᡈὅ3᪷ᡈὅ6᪷ᦑᨬ9᪷ঞZ[@xটᙠ0,6ᑁᨵᏔᦪ(¡¢)᪷ᓽ%6᪷~6bᐵxx=:#ᦑ6᪷Ḅ¥%:X2X3=15w,টZ[ᦑZ[Ḅ%ঞট.12+4ᑖ⚗13Lᦪ1.(2018×ØÙÚ)jᦪ/(x)=logR0B>CB.A>OBC.B>A>CD.OB>A`ᫀDb+᪆áᑴIᦪÂx)=Iog,MO<«<1)Ḅuv᝞uᡠ§TA/(a,10ga),N(a+1,10g(a+D),ooᵫ⚪jZ=/(a)%ᦪᙠÁMᜐᑗéḄê᳛C=/'(a+l)%ᦪᙠÁNᜐᑗéḄê᳛B=Aa+1)/(஺)=ìíî%ïéḄê᳛ᵫᦪðrᔠ஺8>42.(2018•᧎óÙÚ)jᦪÆô)=*2ô)6—alnx(aGR)ᙠö÷(0,+8)Kᓫk⌴ùᑣ“ḄᨬᜧÑ+()A.-eB.eC.-yD.4e2

121`ᫀAb+᪆n%ᦪ/(X)="—2x)e*—alnx(aGR),ᡠ(x)=e**—2x)+ev(2x—2)-Ð=eA(x2—2)—^(x>0).n%ᦪ/)=(ô2—2x)e*—Hnx(aCR)ᙠö÷(0,+8)Kᓫk⌴ù,ᡠ/(x)=e'(x2—2)£20ᙠö÷(0,+8)KឤᡂýᓽfWep?—2)ᙠ(0,+-)±ឤᡂᓽ2x)ᙠ(0,+8)ឤᡂA(x)=eA(x3—2x),x>0,1!h'(x)=e-V-2x)+ev(3x2-2)—ev(x3—2x+3x2—2)=e*(x—l)(x2+4x+2),x>0,%&xG(0,+8),ᡠ)*+)+2>0.%&er>0,h(x)>0,-.x>l,/'(x)<0,-.0

122f(1):.f(l)=e,flx)=^+^c—x,f(x)=ex+x—1,pg(x)=/(x)ᑣg(x)=e'+l>0,<.Iᦪ/(x)ᓫ6⌴8q(0)=0,...Jx<0rf(x)<0,/(x)ᓫ6⌴9sJx>0r/(x)>0,tx)ᓫ6⌴8.ᦑ4X)min=/(0)=l,ᵫMᙠឋḄᩩ}-.ᐵNᦪ஻ḄQRS2஻2஻1,j.”e(_8,U[1,+°o).'ஹs4.LPB=>2-21nxᑣPᑮy=x-1ḄḄᨬA&()ASB.C.D.hᫀCj+᪆B᜛=—21nxᡠ)JᙠḄᑗ᜛=x-4rᑮy=x|Ḅᨬy522=x-'Ḅ᳛&1,ᵫy'=3x—^=l,j.x=lᡈx=§().ᡠ)Ḅᑗ&0(1,|).1355~2~21bPᑮ_y=x-1ḄᨬAByp¡=¢ᦑ⌱C.5.(2018¤□¦§)CD/(x)B2ᦪ/(x)Ḅn2ᦪ¨lḄNᦪx©ᨵ/(x)=e'(2x—2)+

123q“/ஹf(x)µᓻ)জ5¸IG(X)—----º—2x—2,-pG(x)=f—2x+c,VG(O)=/(O)=1,Q.c=\.-VW=(^2~2x+l)er=ev(x-1)2.6.2ᦪ¾0=33x—i,Ll¿—3,2ÀḄÁ|,©ᨵ/(X2)|Wf,ᑣNᦪfḄᨬAB()A.20B.18C.3D.0hᫀAj+᪆l¿—3,2ÀḄx”X2,©ᨵ/(X2)|W/,RÃl¿—3,2ÀḄX”X»,©ᨵ/(X)max—/(x)minWf,3x*-1,:.f(X)=3/3=3(X—l)(x+1).ÄxG¿—3,2À,...2ᦪᙠ¿-3,-1À,¿1,2Àᓫ6⌴8ᙠ¿-1,1Àᓫ6⌴9•\Ax)max=/(2)=/(—1)=1,/(x)=X-3)=-19,/.Xx)-y(x)=20,minmaxmin.•“220,Nᦪ1ḄᨬAB20.7.(2018•ÈÉḕËᓭᓝ᪥ὶὃ»=/Ò)Ḅn2ᦪÓÔÄJxW2r(X-2)(/(*)+8(%)-M(x))>0,ᑣ()A./(4)>(2+4Õ)>43)B../(4)>2/(3)>(2V5+4)/(V5)C.(24+4ÕÖ)>2/(3)>/(4)D.2/(3)>/(4)>(2^5+4)/(^5)hᫀCj+᪆g(X)=L),ᑣg(x)=(X—2)2%&Jx#2r(x-2)¿/(x)+(2-x)f(x)À>0,ᡠ)Jx>2rg'(x)<0,ᓽ2ᦪg(x)ᙠ(2,+8)ᓫ6⌴9ᑣg(V5)>g(3)>g(4),ᓽ2>3-2>4-2ᓽ(2+4ÕÙÚ(3)Õ4).8.LGÄ᜛=«?(G0)஺2Äy=e*MᙠÝᐳᑗᑣ஺ḄXAZ&()

124am—ej+᪆pÝᐳᑗᙠGC2Ḅᑗᑖà&஺%am2l,á/,ezã,ᑣ2஻஻z=J=pᡠ)"=22,஺=4ásᑠ=%siãáAãᑣ"æ=ÄÄ_À,ᑣJ02r,/á஺>0s22Jly<2rá0<0,%çᑠè2ã=éᡠ)Gêᦑ⌱D.7T9.á2018•ëìḕíîïðñòóô¦§ãCD2ᦪ/áxã=x+2cosx+2,ᙠ¿0,ÀXõöᦪX|,X2,X3ᙳMᙠ)ø1ã.ø2ã/áX3ã&ùúḄõûüᑣýḄXAZBáãA.á+8ãB.á—2,+°°ãC.ág,-DDáT+8ãhᫀDj+᪆2ᦪyáxã=x+2cosx+/l,Q•páxã=1—2sinx,0,5,jrᵫ/x=0=VxG0,T,.•.XW0,ᯅ/x>0,xGJ2J/W<0>==++/x=^2=2+2,min•.•ᙠ&'0,I()*+,ᦪXI,X2,/3ᙳ2ᙠ3᜜162,/X3789Ḅ+;<.,.==+»0,জᕜ+ᕜA,ঝὶDজঝEFG.

12510.HGIᦪJᑘ=LᐵNxḄOPAx)—2q/(x)+a—l=0(aeR)ᨵ3,[\Ḅ]ᦪ᪷,ᑣ4Ḅ*acd()x>0f(x)=e(?D,0l/(x)>0,Iᦪᓫh⌴kl=1Iᦪ*᩽a/(l)=e.n0/(x)=-R"o,Iᦪᓫh⌴k,᝞stuIᦪḄsvw=ᓻ)r>e/=ᓻ)ᨵ3,᪷=e/=/)ᨵ2,]᪷0«e,f=ee2-2ae+a-1=0,a2e2—1f02—2aX0+e,,.ᦑ⌱D.2e—1[e—2ae+a—1<0,ax-

126x,x>0,11.(2018¡)HGIᦪ

127¯ᫀA1(1Y—1+᪆x>0Iᦪ./(x)=ax—InxḄ²ᦪ7[x)=a--=^.—,ᵫIᦪHx)7᜻Iᦪ´ᨵ£,᩽a¤஺>0,µwX2=-X|>0,ᑣᨵX2=J,ᡠ3¶1+lna),·/(F5—(l+lna)),ᵫª«Ḅ¬᳛¸·¹"")=a(1+In0,a>0,ᔊXi»(>0,1+lna>0,ᡠ3a>~,wh(a)=a(l+lna)9ᑣa*h'(a)=2+lna=1+(1+lna)>0,ᡠ3஻(஻)ᙠ(},+8)(ᓫh⌴k»¾)=0,A(e)=2e,0<஻W2e,¿(1)ீJ(஻)W஻(e),ᡠ^^9+21n2]A(l;4B.b4.(9+21n2]9+21n2]C.(L10D.1,10¯ᫀC+᪆ᵫ⚪Ï(x)=2x—Inx—1,wg(x)=/'(X),ÐIjg'(x)=2-^(x>0).g(x)=2—520,ᡠ3Iᦪga)=r(X)ᙠᎷ+8)(ᓫh⌴kᡠ3xe1,+8)/(x)W6)=F>0,

128ᡠ3/XᙠÓ+8(ᓫh⌴kÔ7Õa,6×C+8,ᡠ3JXᙠÕ஻Ë(ᓫh⌴kÔ7/XᙠÕ஻6×(ḄaÌ7K3+2,kZb+2l»,ᡠᗞÛÜᡠ3OP᜜=3+2ᙠ3+8(ᨵ£a,b,ÝuÞ=/aߪ«Þ=%a+2ḄIᦪsvᑣ£svᨵ£,ᤢª«âã+2§¤3.+ln2,9+21n2MlÐ1⪫y=©x+2ßy=/xḄsv[ᑗ,wᑗ¤7é0êë=%é஺+2,ᑣ,ì=/Fxolnxo+2,k=l,,2x—lnx-1=k,00ᦪ<íᔠ·G]ᦪ4Ḅ*acd1,9+,213.2018•ïᓭḕñᓭ᪥ὶὃ¢᜜=3ó'পF2?,ᑣ0=.¯ᫀ6+᪆ᵫ⚪Ïx=3fl-4x,Q.fl=3f1-4,Q.f1=2,:x=6—4x,Q.f0=6-4X0=6.14.2018÷ø¡HGª«2éF+1=0ßù«ú=1gᓝ°[ᑗᑣ]ᦪ0Ḅad¯ᫀ2+ln2+᪆ᵫy=lnx+aþ²y'=ÿ,

129ᑗ(ᓽ,lnxo+a),ᑣ•/=~=2,ᦑXo=/,In%0=—In2,ᑗQ—ln2+j,ᐭ2x1+ln2-t/+l=0,஻=2+ln2.15.(2018•ḝᦟὶ"#$)&'(ᦪ>=ᐔ0,,ᐸ./0ᑁ2ᙠ4567Ḅ9ᦪxi:;x⊈==l(i=l,2)ᡂ?ᑣ@(ᦪ.ᓻ)ᐹᨵឋFG,(ᦪ,ᓻ)=?ᐹᨵឋFGᑣ9ᦪ஺ḄJKM.Mᫀ(T_0)6+᪆,(ᦪ᜜)=§ᐹᨵឋFPᑣẆx)=lᨵ456R9ᦪ᪷ᐭTx)=x-=l,ᓽ஺=x-e'ᙠRUᨵ456R9ᦪ᪷.Vg(x)=xe\ᑣg'(x)=xe*+e*=e*(l+x),Vg'(x)=0,x=-1,WXXᓄZg'(x),g(x)ḄXᓄ[\᝞^⊤ᡠabX(—8,-1)-1(ߟ1,+°°)g'(X)c0+᩽eKcfg(x)᪷g⊤hij᝞kᡠaḄ(ᦪklᵫklnoa=xe’ᙠRUᨵ456R9ᦪ᪷,ᓽy=apg(x)Ḅklᨵ4567q,

130ᵫ᩽eKg(-l)=-1no,Wᨵ45qZ”ḄJKMw(cb0).16.zo(ᦪ/(x)=-d—6x—3,g(x)=—ᨬ9ᦪ஻,Vx[£[m,,:£(0+°°)»;/(xi)=g(x2)ᡂ?ᑣ஻cḄᨬᜧKw.ᫀ4+᪆wg(x)=WḂᡠg'()=জᑖឤᜧ'0,e'O,ᵫ⚪£¤¥x>0ᓽnᑣW0<¥<1Zgr(x)<0,g(x)ᓫ©⌴«¬Wx>lZgr(x)>0,g(x)ᓫ©⌴ᡠgWmin=g(l)=2../(x)=-a+3)2+6W6,°(ᦪy=/(x)Ḅkl᝞kᡠaW/(x)=2Zc(+3y+6=2Ḅ4᪷ᑖ²wc5´c1,ᑣ஻cµḄᨬᜧKwc1c(—5)=4.