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2023ὃᦪᔁ⚗1.ᔁὃḄஹὃ!ᑏᙠ⚪ᓱ&2.(⌱*⚪+⌱,-.⚪ᫀ0ᵨ234⚪ᓱ&56⚪7Ḅᫀ᪗9:◤ᦋ>ᵨ?@ABC0D⌱9ᐸFᫀ᪗(G⌱*⚪+ᫀᑏᙠ⚪ᓱ&ᑏᙠHᔁ&Iᦔ3.ὃKL0HᔁM⚪ᓱNOP(Nஹ⌱*⚪H⚪ᐳ12.⚪-.⚪5ᑖᐳ60ᑖᙠ-.⚪S,ḄTU⌱⚗VWᨵN⚗YZᔠ⚪7⌕]Ḅ1,x>01.^_Z`ᦪsgx=<0,x=0/(x)YabᙠR&Ḅc`ᦪg(x)=f(x)-f(ax')e(J()-1,x<0A.(x)]=sgxB.sgn[g(x)]=-sgnxC.sgn[g(x)]=sgn[f(x)]D.sgn[g(x)]=-sgn\f(x)]2.ghᔆᑭᵨklᦪ⊤n5oḄ600Upqrst᪵vᐜ600Upqrsxxᑖyz001,002,599,600.{Vt|60U᪵H}~klᦪ⊤Ḅ4sᑮ6s322118312978645407325242064438122343567735789056428442125331345786073625300732862345788907236896080432567808436789535577348994837522535578324577892345{⊤V6s6ᑡᔣ|ᦪᑣᑮḄ6U᪵HxY()A.324B.522C.535D.5783.^_ᦪᑡ4Ḅ⚗MzS”#q=12,$5=90,ᑣᦪᑡ%()3A.2B.NC.3D.42#.4.^_/(x)=,2j°#ᑣ/(᨟()-x,x<022A.2B.-C.——D.3335.=+1ᱥC,f=4)#PA,5¡///AB,¢/C£ᑗᑗ¡zP,¥AAABḄ☢§zS,ᑣḄᨬ.©z()9273264A.--B.----C.----D.---4427276.ᙠ3cVªA,8,CḄ5«ᑖyza,4c,c-acos5=(2NᑗcosA,ᑣAABCḄ¬z()A.ª®ª¬B.ῪG«®ª¬C.Ὺᡈª®ª¬D.±ª®ª¬
17.3ᡠ5#6789(:;<Ḅ>?@1,ABCDḄEFGH┵ḄJK3#ᑣMNOPḄPQ@RSrx+y<28.TUVWx,yYZ[\]^,ᑣ2x—S#Ḅᨬ(`@RSx>0A.-4B.-2C.0D.49.TUa#@bᩩ[dᔠfB#/#@bg[dᔠh☢#jᑡᩩlm#ḄᐙᑖᩩlER A.m//,muaஹnuBB.m//n,ml.a,n±C.m±n,m//a,n//pD.m±n,m±a,n±p10.FGH┵ḄJK33ᡠ5#ᑣMGH┵ḄPQ@RS²³´µK3p³¶µK3C.2D.42211.TUqᱥBV=20xḄᯖuvwxBy=1R>0,6ு0SḄ|gᯖudᔠ#}qᱥBḄ~BwxBḄ9B?@|#MwxBḄ᳛@RS2
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6ᑣ¡pᑮy=^+lḄôõö=÷øùú{ÅS=g|A8|.d=2(^+1).VFW5-|AB|=2(Jt2+1)-7AB2+1-4(A;2+1)=2J3-4rf2(^>1).û.f(X)=2J?-4x2=>r(ü=6*-8x(x>l)Æ1Wý+/'(x)<0FÆx>g+/'(x)>0ᦑ/(X)min=þÿᔁᓽS-|Ḅᨬᯅ⚪⌱⚗ூ⚪ὃᱥᐵ"Ḅ#ᵨὃᑭᵨ&ᦪ(ᨬḄ)⚪.+,ᙊ┵/0Ḅ☢23ᨬ)⚪456ᵨ᪀⌼9ᦪᐵ"Ḅ:;ᯠ=>ᔠ&ᦪᡈὅᑭᵨ9ᦪBḄ:Cᩭ(+ᨬ.6.Cூ+᪆ᑭᵨFGᳮIJᓄLMᵫsin(A+6)=sinC,ᓄOPQsinBcosA=sinAcosA,ᨬ=ᑖ3STPQUூV++Wc—acosB=(2a-h)cosAᡠYsinC-sinAcosB=(2sinA-sincosAᡠYsinC-sinAcos3=2sinAcosA-sinBcosAᡠYsin(A+3)—sinAcos3=2sinAcosA-sinBcosAᡠYsinAcossinBcosA-sinAcos3=2sinAcosA-sinBcosAᡠYsinBcosA=sinAcosAjr[(B0$4=0\4=]A48CL^L_U2[cosA()\sinA=sinBᓽA=3,AABCbῪ^L_UAABCḄ_debῪ^L_ᡈL^L_ᦑ⌱C.ூ⚪ὃ^L__dḄᑨhὃFGᳮḄiᵨὃjkᑖ᪆+,)⚪ḄlmnopẠ⚪.7.A
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992b29x=-5¤/¥QḄ¦§¨ᵫᯖ©ª«;]=2,ὶ(+.2a2ூV++ᵫᱥy2=20x,PQ2ᱏ20,ᑣp=10,ᦑᐸ¢:£x=-5,22•••ᱥy2=20xḄ¢°/ஹ²=1(>Qb>0)Ḅ´ᯖ/.c=5.0•• ᱥy2=20xḄ¢¤/¥QḄ¦§1,29Æ2«..——=¶2=25=~+¹a2=4,=3,c5ᑣ/Ḅº»᳛e=-]—.a4ᦑ⌱A.ூ⚪ὃᱥḄឋ¾¿ᑭᵨ°/ḄᯖḄF§(º»᳛.F°ᯖ\P>ᔠᯖ©ª«;(+F§.12.Dூ+᪆IÀᦪ]ᳮ1-/•Ḅ_;ᑖÂᑨhÃ⌱⚗ᓽPQᑮ>Ä.ூV+22(1-/)z==--------——=1—11+z+ZḄÅÆ1,A┯~UÇ=/È=0,8┯~Uz=l+/,C┯~Uz2=(l-i)2=-2i,ÉÅᦪ⚪⌱⚗Dூ⚪ὃÀᦪḄʧஹËÆÅÆஹᐳÍÀᦪஹÀᦪḄᑖ3ḄÎnopẠ⚪.]ஹÏÐ⚪⚪ᐳ4⚪Ñ⚪5ᑖᐳ20ᑖ
1013.{-1}ூ᪆᪷⚪Z[A={0,1},ᯠ°⊡ÎḄÏᓽZ.ூ᪷⚪^(|x|=l,.•.A={0Ð},U={-1,0,1},. ©A={T}.ᦑÒᫀB{-1}.ூo⚪ὃtᑡÕ¤ḄLஹᐰÎḄLஹ⊡ÎḄÏ(ὃt×ÏØÙ(yz¥Ạ⚪.14.2.ூ᪆J(TxÚ*ÛÜcdᙶ᪗ß(/%à,4,#(ᵫAM%ᑭ—2á+2=4,âãDA44Mäå☢6CGæᡠᡂd(èà=2+2cos6,=2sin8,ᵨHdéᦪ⊤ë[tanì4,àí(HdéᦪḄᨬᜧᑮ\].ூJ(TxÚ*ÛÜcdᙶ᪗ß(A7%ï4,#(ᑣ4%4,0,0#,%0,4,0 (41,4,281CM=m,0,n ,AM=m-4,4,#(ðAA1_LMC,ñ•ò=m2-4m+2= ,ᓽ%ᑭ-2 2+/=4FðAæJ•å☢BCC4,4Mäå☢8CG4ᡠᡂd(
11èm=2+2cosn=2sin9w[0,ó(ઙ4AjinAg4tanZAMB=—1=■]B'M^(m-4)2+(n-2^)2______________4_____________________4_______2cos6—2)2+(2sin8—26)2(20-16sin^^+^r.ô=Hõ(tanNAMBIᨬᜧ(ᓽäå☢BCC^ᡠᡂdḄµᑗḄᨬᜧ2.ᦑÒᫀB2ூo⚪q⌕ὃt¡*Xuv®Ḅ÷ø⚪(ὃt¡cäå☢ᡠᡂdḄ×Ï.¬zùú⚪(ûüýÚ*ÛÜcdᙶ᪗(ᙠ÷ᙶ᪗ᑁÿᐭᦪᨬ⚪ᓄᦪḄᨬ⚪ὃḄ.15.1.ூ᪆ᵫ⚪!"ᑖ$ᑮḄ'᪷)*+Ḅ,ᑡ/ᔠᦪḄ12345637Ḅ8ᦪ.ூ:042•.•=>Jx3dx='=4=ᑣ(x+y+l)”=(x+y+l)24A⊤C4DE3(x+y+1)Ḅ*".ᦑᐸ7ᨵ2DE3Ix,JDE3IᒕMḄJDE3I1,N$J)Ḅ⚗.ᦑ5637x2yḄ8ᦪCQ•CR•CQ=12.ᦑSᫀQ1.ூUVW⚪X⌕ὃ!"ᑖ*+Ḅ,ᑡ/ᔠᦪḄ123Z[7⚪.16.1ூ᪆ᵫ⚪$563Ḅ]⚗38ᦪ^4Ḅᯠ`'1563ᔜ⚗8ᦪḄ.ூ:ᵫ⚪(x-2)"563Ḅ]⚗38ᦪ^64,ᓽ2"=64,ᦑ=6,dx=1,ᑣ563ᔜ⚗8ᦪḄ(1-2)6=1.ᦑSᫀQ1
12ூUVW⚪ὃ]⚗563Ḅ]⚗38ᦪ⚗Ḅ8ᦪ⚪◤⌕ᵨ!,ghiᑖjkᵨ23lmno,◤⌕qr⚪+m.sஹS⚪Qᐳ70ᑖSxᑏ4ᦻ{|}ஹ~}ᡈ17.(1)~}᪆R(2)~}᪆.ூ᪆(1)✌ᐜᦪf(x)'᪷)ᦪḄI'(X)ḄᓽN4ᐵ[/(X)ḄᓫឋᓽNR(2)✌ᐜ᪀⌼ᦪᦪḄᓫឋ᪷)ᦪḄᓫឋ~}ᑁ+<0.ூ(1)=ex—x—a,dg(x)=/'(x),¤¥Ig(x)=ev—1dg'(x)=e*-1=0$x=0,¬xG(ro,0)°g'(x)<0ᑣg(x)ᙠ(-oo,0)ᓫ⌴³¬xe(0,m)°g'(x)>0¤|g(x)ᙠ(0,+8)ᓫ⌴¸ᡠhgmin(X)=g(°)=l-¬aWl°gÀ0(Á)=1—ᓽg(x)=/'(x)N(),ᑣ/(X)ᙠRÄᓫ⌴¸¬a>l°gmin(Á)=1J“<0᧕>¬Xf-oo°g(x)T,+oo,¬Xf+OO°g(x)->+co,ᵫÊUËᙠឋ!ᳮ>%,%ÎÏÐÑ<%Ò$g(X1)=g(>2)=0¬xe(-8,Ñ)°g(x)>0,ᓽr(x)>0,¬xe(Á],Ô2)°g(x)<0,BPf'(x)<0,¬Áe(X2+°°)°g(%)>ᓽ/'(x)>ᡠh/(x)ᙠ(-00,*)(*2+8)Äᓫ⌴¸ᙠ(*,%2)ᓫ⌴³R(2)~}:᪀⌼ᦪR(x)=/(x)+/(-x)-2,X>Q,
1311F(x)=ex——x9-ax+ex——x?+QX-2,x>0,2L2_ᳮ$F(x)=e'+e-x-x2-2,F\x)=ex-e~x-lx,F\x)=e'+e~x-2>2&*-2=0(¬x=0°Þßᡂá)ᡠhF'(x)ᙠâ0,ã)Äᓫ⌴¸ᑣF\x)>ä(0)=0,ᡠh/(x)ᙠâ0,å)Äᓫ⌴¸F(%)>F(0)=0,æçÎÏÐ>0,è~᳝+<0ᓽ~ΰ“X)ᙠRÄᓫ⌴¸ᑣ◤~/(%)(J£)ᵫ=>/(xJ+ì%)=2ᨵ/(íJ=2-/(%)î◤~/(/)=2-/()(J)ᓽ~/(4)+/(-ð)>2,ᵫ"x)=/(x)+)(-òJ2ᙠâ0,+8)Äᓫ⌴¸,ó>0°ᨵF(x)=f(x)+f(-x)-2>0,222ᦑ/(/)+/(J)>2ᡂáôÀõ+<()$~.ூUVW⚪X⌕ὃᦪöᑖ÷ᓫឋøù᪀⌼ᦪᓫឋ~}ÎÞ3Z[ú⚪.18.(1)(i)~}᪆(ii)—(2)ËᙠA=-113ூ᪆(1)(DþÿACBGOM,CG,⚪᧕ABCGᨵAO=OC,MO\\PC,ᵫ!"☢8MG(ii))*+8G_LGO,.G/012345ᙶ᪗8O-:ᑭᵨᔣ>?@AB(2)DE7=4=4(0,2,2)=(0,2/1,2/1),26(0,1),@+☢BMGḄ?ᔣ>ᑭᵨᔣ>?@A.
14ூOA!QAC3GOM,CG,RGSTAḄUAD=4ᡠ.AG=A£>=2,2RDC=3C=2,ᡠ.AG=BCRAZ)BCᡠ.ABCG.ᡠ.AO=OCWRPM=MA*ᡠ.MO||PCWRMOu☢BMG,PC(Z☢BMG,ᡠ.PCP☢8MG.A(ii)AQYᙠBCDGUR8GCCD1GD,ᡠ.8G_LG£>.G/012345ᙶ᪗8O-xyzᑣG(O,O,O),"(0,0,2),0(0,2,0),A(0,—2,0),B(2,0,0),C(2,2,0),M(0,T,l)ᡠ.\=(2,0,—2),]=(2,0,0),GM=(0,-1,1),BD=(-2,2,0),BM=(-2,-l,1)☢PADḄ?ᔣ>n=(1,0,0)D☢BMDḄ?ᔣ>m=(x,y,z),m-BD=0^2x+2z=0_x=l,`a=(1,1,3),-2x-y+z=0
15\m-n\]ÓÔt☢Õt☢8MDᡠᡂḄ┦]☢Lᑣcos=,2|=~F==——MMvniiᡠY┦]☢LḄØF11(2)ÔÓ=4Ó=2(0,2,2)=(0,22,22),2e(0,1)ᡠYM(0,24—2,22),Ù=(-2,22-2,22),fiG=(-2,0,0),Ôt☢BMGḄCᔣÛÜ=3,b,c),ᑣp-BG=-2a=0ீ---+b=2,Q=(0,Þ1—X),[p-BM=(2A-2)b+2Ac=0WPBt☢BMGᡠᡂḄLḄF,,5ᡠYßàಘ-.\PB\-\P\/ᡝ125+Qa=BᡠYâᙠm=!äåÙ'=2çèQPBt☢BMGᡠᡂḄLḄF,.35ூ⚪]☢téḄêëὃ┦]☢LḄØFḄ(Cὃäå☢LḄFḄeᔲâᙠḄᑨh(CὃÐí0☢☢☢Ḅᐵ"bÎὃîᳮlmïðlmno0⚪. k-akak—k=Ak19.+ÔᱯóᔣÛa=r#ḄᱯóÞᑣ*ᓽ-101A=1Wô0,ᡠYa=2.5ᑖ
16,31132k13WA-i=ᡠYAᓽ11110111ᡠY2+k=3,+Qk=2.ö÷a=2,k=2.20ᑖூ᪆ø⚪ᑖ᪆ᵫᱯóᔣÛ(ù▣A,ᵫ⌮ù▣(kὃᱯóᔣÛ⌮ù▣ü⚪ý⌕ὃ]▤ ▣ᱯᱯᔣḄὃ⌮ ▣.20.(1)᪆(2)b,=2",nwN"(3)᪆ூ᪆(1)=14=5=0,ᓽa=0.ᑮS,=ᑭᵨ⚗"#$%n⚗$Ḅᐵ'(ফᵫ(1),=2("-1),eN*.-./ᦪᑡ23Ḅ"/44,ᡠd=6e=2/1,᪷:;ា4S4=>1Ḅ./?⚗(বᵫফᑮA2B,Dᔵ&+Fᓃ+…+ᔺ5+K+…+L=2">(2”D1)+1=M,((NᐭPQ2"2"2ூ(1)S=1q=5=0,ᓽ=0.ᡠS“=.22B=S“—S,i=--”B)q,(—2)4=(>1)4T,Y23BZ-=n.,ᡠ%=-^-x-^-x---x-^-xa=2(n-l).2a,--2a_,a,7a2n]ᯠY=1,2B_`a#.ᡠ%=2(-1),GN*.-4=2,ᡠᦪᑡf%3g.hᦪᑡ,(2)ᵫ(1),“=2(-1),MN*•-./ᦪᑡ23Ḅ"/4/ᡠ,=kz=2/1 .=6,S*=12,bு—2qf
17•••4ា$4uuTḄwxU⚗ᡠ.62=12x(2q-l),A`4=2,ᡠ."=2",eN"(3)1=Cj+2+…+c“+ᓶ(++++++…+ெᯅ+^^+…+ᐹ‘2111111C--------1--------------+...H------>-------1------- • H------n-I9"2"-'+12+22"2"2"2"2"-(2"-'-1)+1T1T2"26x2+13ᡠ.=27^=1+—+-+—=—=2341212.,1111116/1+13r=c.+c,+---+c„>i+-+-+-+—+—+•••+-23,n'-"23422212.•.22,ᨵ12\6+13,ூ⚪⌕ὃᦪᑡḄ⚗¡¢⚗¡Ḅᐵ8w¤ᦪᑡwxᦪᑡḄ¥¦¡ឋ¨.©ᦪᑡª«Ḅ\?¬ὃ®ᓄᓄ°Ḅ±²¡³´@AḄµ¶·⚪+121.(1)¸¹ºA᪆(2)40(3)a„=——2ூA᪆(Dᑭᵨ⌴)ᐵ8@+ᦪᑡḄ⚗½^¾¿=1À+|,m-4+2|¹ᔲᦪᑡÄ4ÅUḄ⚗ᓽÆ`Çᫀ;(2)ᵫ⚪`º+|qᵨ^%+2|=4+(-1)1+31ˤ½ᑖÍÎÏᓽÆ`ÇᫀB(3)ᵫ⚪`ᦪᑡÄÐw¤ᦪᑡDᦪᑡÄ4ÅḄ¤ÑÒ()),Ë᪷Ô¸w^dᵨ`ᑮ¤Ḅ×,ᓽÆ`ÇᫀBூOA(1)22a-S-5,,.,=4/i-2n2-4(n-1)+2(n-1)2=-4n+6nnWq=Si=2=4xl-2,ᡠ.a“=-An+6.
18ᡠ.4+Ù-a“+2|=4+6+4=10-4=1a+\a-a\=6,“<2,Hn+ln+2ᡠ.=14,+ᵪ^,Ü21¸¹ᦪᑡÄ“ÅUḄ⚗ᦑᦪᑡÄ4Ÿ¹“Tᦪᑡ”(2)RᦪᑡT¹¤dḄw¤ᦪᑡᡠ.a+\a-a\=4+(-l)d+1d|.nn+in+2RᦪᑡÄ4Å“Tᦪᑡ”ᡠ.GN*Þᙠ᪷GN*ß`à+(—l)d+|d|=a,“ᓽᨵ(a^")"=|"I.জã"NO,ᑣä◤m=+lwN*ß`(a^")d=|d|,`4+|èᵨ^Æé¹ᦪᑡÄ“ÅUḄ⚗.ঝãd<0,ë=1.=1ì=0¸íᦪᡠ.ï<()¸ðᔠ⚪.òód20.বᵫ⚪a0),ᑣᨵ“=1+(-Dr,ᵫa„<«,ti-an<4,+i`1+(T)<42+(2n-l)t]ö-3/+1,জ,?(£—2ᔆ)>2/—1~—1,ঝã2/-<0,_íᦪN>u"ÿᑣ>N()(2r—1)<(2ᔆ—/)N"—3/+1,জGN*ឤᡂ!"#2/$f20.(᪵᪷+ঝ-.r-2/20ᡠ12/$f=0.3>0,ᡠ1/■=1.2678£=:জঝ;eN*ឤᡂ2
19ᡠᦪᑡ>q@Ḅ⚗"#4q=1+g(—1)=.ூmnp⚪ὃᦪᑡrst⚪ஹ.hᦪᑡḄ⚗"#ὃvᦪwxyzஹ{ᓄᓄ}yzஹᑖyzὃᳮஹ(ᜧ.2922.(1)~(2)জᑖᑡ᪆£(X)=238.6.ঝ⌱ᵬ"ὺ.140ூ᪆(1)Ḅ3ᜩ〈⚶ᓫᦪ¡404¢£AP(A)Ḅ.(2)জ-¤"〈⚶ᕒ〈⚶ᓫᦪ4YI=38Bx=38x6,¦SYa=39BY=40BXḄ.Y=41BXḄ§ᳮSYa=42BX.XḄᡠᨵ.XḄᑖᑡᐸᦪª«¬.ঝ⚪®ᵬ"〈⚶ᕒ¯°ᙳ〈⚶ᓫᦪ.ᵬ"〈⚶ᕒ¯°ᙳ²³¤ᦪª«¬/ᓽ´.ூS(1)ᵫ⊤,50ᜩ〈⚶ᓫᦪ?ᨵ30ᜩḄ〈⚶ᓫᦪ¡40ᓫḄ3ᜩ〈⚶ᓫᦪ¡404¢£A,ᑣP(A)=^=&.ஹJ140(2)জ-¤"〈⚶ᕒḄ〈⚶ᓫᦪ4¯²³4XᐗᑣY=38BX=38x6=228PY=39BX=39x6=234PY=4()BX=40x6=24()PY=41BX=40x6+7=247PYa=42BX=40x6+14=254.ᡠXḄᑖᑡ4X228234240247254131P5105510E(X)=228x1+234x2+240x1+247x1+254x^=238.6.5105510ঝ⚪®ᵬ"〈⚶ᕒḄ¯°ᙳ〈⚶ᓫᦪ438x0.2+39x0.2+40x0.3+41x0.2+42x0.1=39.8,ᡠᵬ"〈⚶ᕒḄ¯°ᙳ²³480+4x39.8=239.2ᐗ¸4238.6<239.2,ᡠ⌱ᵬ"ὺ.ூmnp⚪ὃ¹º»¼Ḅᑖᑡᦪª«¬ஹ½ᐺᭆ᳛"#ஹÁᔠ"#ὃ¹ᳮá?
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