数列易考点考向知识点总结分析,数列高考真题及答案解析

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1511.“"⌴ᦪᑡäjklḄåᯠᦪ஻(ç1),ᨵ4=1+4஻ឤᡂᑣèᦪ4Ḅ"Z.12.᝞¥ᡠéḄᦪ▣ë64ìë2qᦪí.1112211.1343L1114774111115n14H513.îᦪᑡ3Ḅ⚗a»=n2-7n-8.(1)ᦪᑡᨵ¾ï⚗Zðᦪñ(2)ᦪᑡòᔲᨵᨬ¶⚗?ᨵ§ᐸᨬ¶⚗.14.ᦪᑡ஺“Ḅ஻⚗ZS“6=1ä5“=54("+1).(1)Ḅ%(2)ᦪᑡ4Ḅ⚗.

1615.ᦪᑡ4Ḅn⚗S“KLS=2«„-l(neNn(1)q,a,%Ḅ2(2)ᦪᑡJKLõ=2,b=a+b,ᦪᑡJḄ⚗.ll+lnn16.öᦪᦪᑡ஻“Ḅ஻⚗ZS”KL÷2=S“+S“T(஻N2),q=l.(1)ᦪᑡòḄ⚗(2)øᒹ=(1Q”“)2-”(1Q/)4⌴ᦪᑡèᦪ4Ḅ".17.ᦪᑡ%KL%=6,—an+\-an(1)ᦪᑡ4Ḅ⚗(2)øS“Zᦪᑡ4Ḅ஻⚗ᦪᑡḄ⚗ᑐ,.

17ûüὃ.1.(2015þÿ)ᦪᑡa%=1+1-a=n+l(neN*),ᑣᦪᑡḄ10⚗nn.2.(2017᪗ᐰ111ᦻ⁚⌱)ᦪᑡ஺,,4+342+~+(2஻-1)4=2஻!"஺,#Ḅ$⚗%&.3.(2018᪗ᐰIᦻ)'(ᦪᑡ44=1,)*=2(஻+1"„,"=!.n(1)"-!b,b.2y(2)ᑨ0ᦪᑡ஻1ᔲ34ᦪᑡ!567ᳮᵫ.(3)"%Ḅ$⚗%&.:;ὃ=ᫀ.?&@A7^B1.ூ=ᫀ௃BூE᪆௃GHA,I஻᜻ᦪ!%=K=1,I஻Ꮤᦪ!%=I=2,MN;GHB,I஻᜻ᦪ!a=^-=2,I஻Ꮤᦪ!4==2=1!PMN.n

18GHC,I஻᜻ᦪ!a“=U=l!I஻Ꮤᦪ!஺“===2,MNRGHD,I“᜻ᦪ!%=?=1,I஻Ꮤᦪ!%=?=2,MN.ᦑ⌱B.ூUVWX௃Y⚪ὃ[ᦪᑡḄ$⚗%&!ὃ[ᑖ]^_`a:b!cHdẠ⚪.G஻ᑖ᜻ᦪஹᏔᦪ^_ᓽhᑨ0.2.ூ=ᫀ௃a=4n-4n-\.nூE᪆௃iᦪᑡḄᔜ⚗k1Mᦪ!ᐸw⚗S“2s“=4+'■,஻eN*,ᡠnI஻=1o!2sτ=q+—=2q,4=1.4I“22o!2S„=«„+—=S-S„_,+1,ᓽS“+S,i=!,ᓽnan!f-1!BS.-S.T=1,ᡠnᦪᑡr13sᦪᑡ,tS;=l,iuS.=஻!Sn=C3iu=S஻—S஻_]—v">2x,tq=1ya“-1,ᡠna=s/n—y/n—\,neN".nᦑ=ᫀ%=zBJUூUVWX௃Y⚪{⌕ὃ[ᵫ⌴~%&"ᦪᑡḄ$⚗%&!ᮣᜐᳮ⌴~%&ᓽh!cHὃ⚪."Eo!ᐜᵫ⌴~%&"=1,ᵫ஻22o!2s“=%+1-=S"—S“T+W~,᦮ᳮ!"S“!h".anB>1n+1.23.ூE᪆௃v1஻=1ᐭq1+-an+"T7"'zn%=2q+1!nA/tᵫq=l,4=,!=3.v2ᵫ஺,ᔣ4±L஻+1n-3"

19ᓽ-+1-2=:.I஻22o!b„-b^(b-b_)+(/?„_1-b„_)+•••+(^-^,)nnx22Bবi__1_7^~2~2x3'-'!1-----3i=⁐=1,ᡠn2=3——.11"22X3"Tia=1y〉ᔠ&!31ᡠn"22X3"TூUVWX௃Y⚪ὃ[ᵫ⌴~ᐵ¢"$⚗!ᵨ¤¥ᨵR§)¥!§¨¥!᪀⌼34ᦪᑡ¥!«᎔ᦪ¥!«Gᦪ¥33!Y⚪ὃ[Ḅ1§)¥!®ᦪᑡḄ✌⚗°ᦪᑡ✌⚗Ḅᐵ¢.34.ூE᪆௃(1)஻>1o!S,,.1=-«„-1-1.an=Sn-Sn-\=BBτ±=3஺a௃=2w0,ᦪᑡ%134ᦪᑡ!a=2x3'"',nS“=3"-1,ᓽᦪᑡS,,Ḅ$⚗%&5„=3"-1.Sv2
ᦪᑡ²³1⌴´ᦪᑡ..Sn.5µ7᝞·R¸=²!3”

20.n>l,..3n+,>3஻>1,..3w+,-3஻>0,3H+1-1>0,3"-1>0,222v3"-3"+••bi-b=—R---------=-------r-3-------r<0.ᵨ஻3»B13஻B1v3,/+,-1v3,,-1S•.y1⌴´ᦪᑡ3ᓽᦪᑡ½¾1⌴´ᦪᑡ.ஹSn,ூUVWX௃¿⚪ὃ[Ḅ1ᨵᐵᦪᑡḄÀ⚪!ÁÂḄ(ÃWᨵR᪷ÅᦪᑡḄ⌴~%&ᑨ0ᐸ34ᦪᑡ!34ᦪᑡḄ"%&!ᑨ05µ7ᦪᑡḄᓫÇឋ!cHÉ᫏⚪Ë.3প᪷Å⚪ÉᡠÍḄᩩÏ!ᑏ஻>1o!=”,Ò1.ÓÔÕ&Ö´!ᑮ±=3%,Øᑮᦪᑡ4,
134ᦪᑡ!ᑭᵨ"%&"S“=3"-1.2ÚÛᓄÝ!ÓÔÞᵨᓫÇឋḄßàµ7ᦪᑡ1⌴´ᦪᑡ.ὃWáᐵߟ---------1.ூ=ᫀ௃cூE᪆௃GH⌱⚗A,Iᱏ2oஹã=-ä!P⚪®!ᡠnAPMN.2GH⌱⚗B,I"=1o!஻å-.!P⚪®!ᡠnBPMN.GH⌱⚗D,I"=2o!O2=g,P⚪®!ᡠnDPMN.2஻B1I"=1,2,3,4o!æ=T"+i——ᙳ⚪®!CMN.2.ூ=ᫀ௃B1,1,…451èE᪆ᵫ⚪4=B:!஺2=1-----=1+4=5,4=4=1—=BB!445544ᡠnᦪᑡq
Ḅᕜë3,t2019=3x673,ᡠn஽oig=4=1.ᦑ⌱B.ூUVWX௃Y⚪{⌕ὃ[ᦪᑡḄ⌴~%&ᦪᑡḄᕜëឋ!®ᙠὃ[îïGðñ(ÃḄᳮEòóôõᑖ᪆~ᳮ:b.ᐜ$öᑡ÷øᑮᦪᑡḄᕜë!᪷Åᕜë"E.3.ூ=ᫀ௃B

21ூE᪆௃I“22o!a-S-S_-n2+/?—(/?-1)"-(n-l)=2/?,I஻=1o!nnnq=E=2,ᡠᦪᑡqḄ⚗a,=2஻.ᦑ⌱B.4.ூᫀ௃Dூ᪆௃ᵫ⚪$%a-a_^n+\,᪷()*+,nn=q+(a2-஻[)+■,•+(a஻-஺஻5|)=3+3+4+51஻~+3஻+2,,H---F஻+l=---------,ᦑ⌱D.25.ூᫀ௃BS_1ூ᪆௃ᵫ?=2,,£=2,AS,+|=2S„-1,S„-l=2(S„-1),ᓽ-^ߟ=2,+lJ”—1G5-1=1,ᓽᦪᑡS.-lH1✌⚗2JḄKJᦪᑡᑣS“5l=lx2>i,ᓽS“=2"T+1./.a=S-S=(27+l)-(26+l)=26=64.887ᦑ⌱B.ூWXYZ௃[⚪ὃ]^ᦪᑡ⌴`,ὃ]ᑭᵨ᪀⌼+eᦪᑡḄ⚗,fgh᫏⚪.ejᵫk%ᦪᑡ⌴`᪀⌼KJᦪᑡS.-1,eᐸ⚗,ᑮS“nᵫG=§8-S7e.6.ூᫀ௃Cூ᪆௃ᵫ4+1-4=2஻%rs54=2x1,a-a=2x2...a-a_=2(n-l),32nnu*,r(-i,,—Uy=n~—n,=n-\-----1,A“eN*>ᡠ“W4jᓫ{⌴|nnn“25j}ᓫ{⌴~ᒹ=%ᡠ?Ḅᨬᒹ=%=8,ᦑ⌱C.n45n45ூWXYZ௃[⚪ὃ]ᦪᑡ⚗ᦪᑡᓫ{ឋὃ][ᑖ᪆efh᫏⚪.ᐜ᪷(*+e4,,nᑭᵨᦪᑡᓫ{ឋeᨬ.7.ூᫀ௃Cூ᪆௃ᵫᦪᑡ1,1,2,3,5,8,13,21,34,55,…ᔜ⚗◀2Ḅᦪ,

22,1,1,0,1,1,0,1,1,0,1,1,O....,ᡠHᕜ3Ḅᕜᦪᑡ5ᕜhḄ⚗1+1+0=2,2019=673x3,ᡠᦪᑡ4Ḅ2019⚗Ḅ673x2=1346,ᦑ⌱C.ூWXYZ௃[⚪⌕ὃ]^ᵫ⌴`ᐵeᦪᑡᔜ⚗Ḅfgh᫏⚪.ᑭᵨ⌴`ᐵeᦪᑡhḄ⚗ᡈeᦪᑡḄr¢1£⚗Ḅ¤¥¦j⌲¨⌴`e©ᓽª¢2£⚗Ḅ¤ᦪ¦ᜧjὃ⇋®ᦪᑡHK¯ஹKJᦪᑡᡈὅHᕜᦪᑡ.8.ூᫀ௃-2,1,11,1ூ᪆௃ᵫk%,4=1-----,6=2ᡠ“7=1----=74=1----=514+1«82%9.ூᫀ௃-12ூ᪆௃³஻22,4=S“-S,i=2஻³“=1,4=2ᦑ஺“=2஻2=¢஻55£஺,,=2஻¢஻-5£,´µ¶஻=■!ᦑ஻=2ᡈ3j஺.ᨬT2.ᦑᫀT2.ூWXYZ௃[⚪ὃ]ᵫS“eᦪᑡ⚗ὃ]ᦪᑡᨬὃ]¸¹HẠ⚪»$”½᦮ᦪH᧕┯⚪.ejᐜᵫS“=/+஻e,4,nᑭᵨÁÂÃᦪeÄḄᨬ.l,n=110.ூᫀ௃17ூ᪆௃³஻=1jᵫÅ=2+1=3,,4=1ª³஻Æ2jᵫ3%+3~%+3%3+…+3"஺“=2"+1,,3%+32%+33%+…+3"T%=+1,

23l,n=1Çu|,3%,=2"T,ᦑ4i7ÈÉᙠ21,஻Á1ᦑᫀrËÌ32ூWXYZ௃[⚪ὃ]ᦪᑡḄ⌴`ᐵḄÍᵨᦪᑡ⚗Ḅe+$ᙠὃ]Îs´ÏÐ%ÑḄᳮÓÔÕÖᑖ᪆`ᳮ.11.ூᫀ௃(—3,+oo)ூ᪆௃ᵫ஻஻⌴~ᦪᑡ,஻஻+1-஻,Ì(஻+1)2+“஻+1)-Ù-2Ú=2஻+1+2>0ឤᡂÝᓽ2>-2«-1ᙠn>ljឤᡂÝÞ4஻)=52஻-1,6GN*ᑣ/(஻)max=-3.à◤2Â஻)max=-3ᓽ.ᦑâᦪXḄäæ(-3,+00),12.ூᫀ௃—2017ூ᪆௃ᵫ⚪$çè2éêëì5éḄè2ᦪíḄᑖî}ᡂ5ᦪᑡ%,ᐸh2,4,7,11,…a-=n(n>2,neN*),nᑣ/ஹ/ஹ/\CC1C(«-1)(«+2)n2+n+2a”=q+(©-q)+(%-%)+"-+(4-a„^)-2+2+3+---+n-2+---------=-------³஻=63jᑣ43=63-+ª3+2=20]7,ᡠè64éḄè2ᦪí3-.ூWXYZ௃[⚪⌕ὃ]^ᦪᑡḄÍᵨñ⚪ᐸhh᪷(⚪$òçè2éêëì5éḄè2ᦪíḄᑖî}ᡂ5ᦪᑡa„,e,ᦪᑡḄ⚗HḄᐵóḼõὃ]^`ᳮö÷¹fgh᫏ø⚪.13.ூ᪆௃(1)Þù<0,ᓽ஻2_7஻58<0,,51V”<8.A஻£ஹ\ᡠ2,3,7,ᦑᦪᑡçè1⚗üè7⚗ᙳþᦪᐳ7⚗.

247(2)ᦪ)=/-7ᔆ8Ḅx=]=3.5,ᡠ1—3ᦪᓫ"⌴$;&4ᦪᓫ"⌴(ᡠn-3ᡈ4ᦪᑡ+,-ᨵᨬ0⚗1ᨬ0⚗Ḅ=஺4=-20.14.ூ5᪆௃(1)8q=11S“=ga“(஻+l),஻=21+4=344=2,஻=31+2+q=gx4xq,5A%=3.(2)“224=S“-“=8஺“(஻+1)-ᓄD૙=E.nn-\.4=4T==4=%=inn-\32Ha-n.n஻=1IJEᡂL./.=n.ூMNOP௃Q⚪ὃTUᦪᑡ⌴VᐵXஹᦪᑡḄZ⚗[J\ᐸឋ_`ab᫏⚪.deᦪᑡf஻⚗ghᦪᑡZ⚗[Jiᵨ[J஺kᡠlᩩnᓄᐵafw⚗gḄ⌴VᐵXᡈpᐵaq஻⚗Ḅ⌴VᐵXrstuvᦪᑡᡈuwᦪᑡxy,ᵨuvᦪᑡᡈuwᦪᑡZ⚗[JhzᦪᑡḄZ⚗[Jᔲᑣ〉~᪀⌼uvᡈuwᦪᑡhZ⚗[J.ᙠᑭᵨS”Z⚗஺“ḄᐵXh஺”Ḅbx⌕஻=1Ḅ.15.ூ5᪆௃(1)=1,%=2,%=4.(2)S“=2a“—l("eN*),ᡠ஻22ᨵS,T=2a,“—1,ᑣa„=2a-2a„_](H>2),ᓽ=2a…(n>2).nᡠ+4-p1✌⚗2[vḄuvᦪᑡᡠ஺"=2"%=%+"ᡠ%ᡈ=2"

25ᑣ-2-=2°,4-=2,-%=2"-2I஻1JADh-b=lx°_2_),"'1-2a=2,ᡠd=2"T+l(“eN*).16.ூ5᪆௃(1)qj=s“+s,i(஻22),6%2=5“1+5"-2(e3).$¥ADa;—=a+a_,nnxVi7„>0,““-I>0,".a-a-\=\(ri>3).nn஻=2a2=a\+ai+a\,HPa2=2+ai>ai>0>5A42=2.2©"=2a,-a,I-I=1ᡂL.ᦪᑡ+0-puwᦪᑡ[w1.'.a=\+n~\=n.n(2)b=(1—a)2—a(l—a)=(n-1)2+a(n-1),nnnD+d-p⌴(ᦪᑡb+1-b-n2+an-(n-1)2-a(n-1)=2஻+a-l>0,ᓽ“>1-2”ឤᡂLnn.a>-\,ᓽ¬ᦪaḄ®°p(T,+oo).ூMNOP௃Q⚪ὃTᵫf஻⚗g,ḄᐵXhᦪᑡḄZ⚗[JὃTuwᦪᑡḄZ⚗[JgᦪᑡḄᓫ"ឋ³⚪`ab᫏⚪.(1)ᵫa2=Sn+Sn-1(ri>2),¥A12=S1-1+S.-2(O3),´J$¥ACln-Cln-In=1,µᵫ0=1,¥A+0-ḄZ⚗[J.(2)᪷·+%-ḄZ⚗[Jᓄ¸¹gd+i,ᵫ⚪Aº+i-d>0ឤᡂLᑖ¼~½ᓽ¥A஺Ḅ°.17.ூ5᪆௃(1)•••஽=6,À--=஻(஻eN),

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ÌI=--------=--------,'S3஻(஻+1)3(஻n+\)'n•72J11111ஹ2J112n"3(223nn+l)3(n+lj3஻+3ூMNOP௃Q⚪ὃTᑭᵨ⌴V[Jh5ᦪᑡZ⚗[JஹÎ⚗ÏÆh5ᦪᑡḄf஻⚗1gḄ³⚪DᐵÐpÑÒ᪷·⌴VᐵXÓxÔᵨÄÅÆh5Z⚗D᪷·ÕḄJÓxÎ⚗ḄÖJ`ai×⚪Ø.(I)᪷·Ù=஻(஻6>1')¥A40=ÛᑭᵨÄÅÆ¥hA/84+1-4a”n(2)ᵫ+4-ḄZ⚗[J¥eᦪᑡ+4-uwᦪᑡᑭᵨuwᦪᑡhg[JhAS,,,1Aᑮ—;µᑭᵨÎ⚗ÏÆhAT.nÝZÞὃ—--------201.ூßᫀ௃—ூ5᪆௃Ḅ=110+i—a=á+1,ᡠâ=(a-a_i)+(a.i-a_)+…+nnnnnn2(஺2%)+Qi=á+(á-1)+…+2+1=ᑣ—=2|------|,2a„

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D*+ᦪᑡEFGᦪḄᐵ.

29Eஹ+ᦪᑡ1.+ᦪᑡḄᭆ-EKᙢ᝞%ENᦪᑡO2⚗QRE⚗SḄ0E⚗Ḅ+TENUᦪVWXNᦪᑡYZ[+ᦪᑡ.XNUᦪZ[+ᦪᑡḄ++Uᵨ\]d⊤_.ᓽa“+i-a.=d,dbUᦪ•2.+;⚗᝞%a,A,gᡂ+ᦪᑡVWAZ[a6Ḅ+;⚗jA=Cl.23.+ᦪᑡḄ⚗nᐸpqrsb✌⚗db+Ḅ+ᦪuv|aBḄ⚗b=6+-1(஺.nḄpq{4=}“+'஻E(d,/n,neN*.4.+ᦪᑡEFGᦪḄᐵᵫ+ᦪᑡḄ⚗஺“=q+'஻-1(4,=dn+Ca-dD.xEP=d,q=a-d,ᑣ=+ᐸ;P,4bUᦪ.i'1(஻0'஻,(ᙠEFGᦪ>=px+qḄᦪᑡ4Ḅ>=px+qᙳᒴᑖḄEḄjd>0ᦪᑡ4b⌴ᦪᑡd<0ᦪᑡ},b⌴¡ᦪᑡ.'2(=0=q,+ᦪᑡbUᦪᑡᦪᑡ4Ḅ¢£x¤Ḅ'ᡈx¤(ᙳᒴᑖḄEḄ.¦ஹ+ᦪᑡḄ0“⚗21.+ᦪᑡḄ0஻⚗2✌⚗b§,¨⚗b⚗ᦪbnḄ+ᦪᑡ4Ḅ0n⚗2{S,=---!----=na.H------d."212«P=57=«,-y.S“=p“2+g஻ᑣ

30জ´0,ᓽd/0s”ᐵ஻Ḅ¦FGᦪ(஻,5“)D=஺/+/ḄEᑡḄ¹ঝP=o,ᓽd=0s”ᐵ"ḄEFGᦪজ¼0,ᓽ420)ᡈUGᦪভ=0,ᓽ4=0),(஻,S,)y=/EᑡḄ.ᡃ¿r¦FGᦪḄ2ឋÁᩭẆÄ+ᦪᑡḄ0n⚗2Ḅᐵ7⚪.2.ᵨ0஻⚗2Åᑨ+ᦪᑡ+ᦪᑡḄ0n⚗2GᦪḄᐵÇÈDEÉᑨÊᦪᑡᔲb+ᦪᑡḄÌÅ{ÍᦪᑡqḄ0஻⚗2S“="/+Î஻+*VWjÏ஺=0ᦪᑡ4r஺+ᓃb✌⚗2ab+Ḅ+ᦪᑡ¹ᦪᑡ4Ñ+ᦪᑡ.Òஹ+ᦪᑡḄឋÁ1.+ᦪᑡḄUᵨឋÁᵫ+ᦪᑡḄÓ+bdḄ+ᦪᑡ%ᐹᨵ᝞ÔឋÁ{(1)⚗ḄÕÖ{a=a+(n-m)d,m,/?eN*.Hm(2)Im+n=p+q,ᑣa,“+%=%,+/(Øp,geN*).ᱯ=ᙢজÍm+n=2஻ᑣa+a=2a(,peN*)¹mnpm@^m+n+t-p+q+r,ᑣa,“+a“+4=a஺+%+%G”,஻,p,q/,reN").ঞᨵÝ+ᦪᑡ;✌¨⚗ÞßḄ⚗2àà✌¨⚗Ḅ2ᓽ%+an=a2+=L=a,+a„_,-=L.+1(3)Ô᪗ᡂ+ᦪᑡḄ⚗%4+,,,%+2,"Låᡂr”b+Ḅ+ᦪᑡ.(4)ᦪᑡKta+49/IUᦪ)+btdḄ+ᦪᑡ.n(5)Íᦪᑡ஻b+ᦪᑡᑣᦪᑡèa,éê,«,4Uᦪ)ëb+ᦪᑡ.(6)Í4=4%=஺ᑣ2.+ᦪᑡᔜ⚗Ḅ2ᨵᐵḄឋÁᑭᵨ+ᦪᑡḄ⚗n0n⚗2᧕+ᦪᑡḄ0n⚗2ᐹᨵ᝞ÔឋÁ{ï+ᦪᑡZ(+bï2ðḄ0n⚗2ᑖ=bS,T„,n

31SI(1)ᦪᑡj+ᦪᑡ✌⚗b᜜,+bEd.'2(SQS-S,S,-S.,L,E5.,,L᪀ᡂ+bk2dḄ+ᦪᑡ.2kk32A'mn(3)Íᦪᑡ%ᐳᨵ2஻⚗ᑣSöES᜻=஻"ᔛ=SᏔ='஻E1(/(.--S----2----n------\------_----a„--S-----2---,-„-------l--------l,—------.f—-----------------------C1---------7T,"ib'T..2n-\b'ὃᔣ89ᦪᑡḄᑨ>?@+ᦪᑡḄᑨúûḄÌÅ{জÓÅ{a-a=d(neN")ᡈ%-6E=4(஻i2,஻eN*)oKa,M+ᦪᑡ¹n+MnঝÓpqÅ{ýúᔲþÿ«„-a=a-a_(n>2,neN*)+1nnnM;ঞ⚗2a,=a“+4+2(஻eN*)oa“ᦪᑡ#ট%⚗&'%⚗&'(᝞=p஻+q(p,q,ᦪ)0qᦪᑡ#ঠ/07⚗2&'S„=PT?+6(p,q,ᦪ)஺4ᦪᑡ.9:(1);ᑨ=>?ᦪᑡ@Aᦪᑡ0B◤DEF⚗G,G+1,H+20IJ2஺,ᵨL+4+2ᓽN#(2)᝞O⌕QR>?ᦪᑡAᦪᑡ0ᑣTUᵨVWᡈ⚗.ᐺ6Z⚞ᐺ61\]ᦪᑡ4,^_`b„=a+a,ᑣ“ᦪᑡ4ᦪᑡ”A“ᦪᑡ^nn+lᦪᑡ'’ḄA.ᐙᑖ@T⌕ᩩiB.T⌕@ᐙᑖᩩiC.ᐙᑖT⌕ᩩiD.m@ᐙᑖ^@T⌕ᩩi

32ூoᫀ௃Aூr᪆௃;ᦪᑡ4Aᦪᑡ0tᐸ&4,ᑣ4+1>v=(4+1+4+2)-(4+%+J=4+2—%=M3ᡠ{ᦪᑡ4Aᦪᑡ.;ᦪᑡ^Aᦪᑡ0tᐸ&40ᑣ*b”=(a“+i+a)-(aa)=a-a=d,@|}Eᦪᑡ%Aᦪᑡ.n+2n+n+Mn+2n2ᡠ{“ᦪᑡ%ᦪᑡ”A“ᦪᑡ2ᦪᑡ”Ḅᐙᑖ@T⌕ᩩi0ᦑ⌱A.ூ௃᪷ᦪᑡḄVW0“ᦪᑡ%ᦪ,|}E“ᦪᑡ2ᦪᑡ”0“ᦪᑡ2ᦪᑡ''@|}E"ᦪᑡ%ᦪᑡ”0NJO.'1.\]ᦪᑡ/Ḅ/஻⚗2s”.(1);4ᦪᑡ0Q‘=஻""")#(2);S,,="(♦#%),Q%ᦪᑡ.ὃᔣ$89ᦪᑡABCDḄE1.ᦪᑡ⚪Ḅ>AtE✌⚗2&”0ᯠᵫ%⚗&'ᡈ/஻⚗2&'ᓄ(¡)r.2.ᦪᑡḄ%⚗&'¢/஻⚗2&'0ᐳ¤¢¥?¦᜜,a„,d,n,S,]ᐸF?n¨|©᜜ª?0«¬Ḅ®¯.ᐺ6Z⚞ᐺ62\]%ᦪᑡ0Sᐸ/஻⚗20;q=6,%+%=°0ᑣ$6=.nூoᫀ௃6ூr᪆௃:4Aᦪᑡ00=2஺4=00%=஺004-4=34=-6,rJ

33d=-2,§6=64+15d=6x6+15x¹—2º=6,ᦑ»6.ᐺ63ᙠᦪᑡ40ai=l,5--15.5¹1ºᦪᑡ”“Ḅ%⚗&'#¹2º;ᦪᑡ4“Ḅ/2⚗28=-48,ÀḄÁ.ூr᪆௃¹1ºtᦪᑡ4Ḅ&"0ᑣ%=q+¹஻—lºd.ᵫ“1=1,Ss=-15,NJ5+10d=—15,rJd=-2,ᦑq=l+¹஻—lºx¹—2º=3—2”.¹2ºᵫ¹1ºN]%=3—2஻0ᡠ{S,,=஻¹1+3-2?I=2஻_஻2."2Ã22>&ÄT8,ᓽ3—2Z—48=0,rJ᝕=8ᡈᦇ=—6.ÈÉwN*,ᦑ᝕=8.'2.ᙠᦪᑡ4,S]q=3,&d=2,;Ë“=%+%+%+%+%J஻?GN*,ᑣm=A.19B.18C.17D.16ὃᔣ+E89ᦪᑡḄ⚗:஻⚗<1.rᦪᑡ%⚗&'ḄÍ⌕ᨵªÏ¹1ºVW.¹2º/஻⚗20ᓽ᪷/஻⚗2S“Ð4ḄᐵÒr.ᙠᑭᵨVWᦪᑡ%⚗&'Ô0,¤¢tᦪᑡ⚗Ḅ⚪0ᦪᑡ⚗Ḅ,Õtᨵ¹1º%⚗#¹2ºÖ×⚗t.Øᦪᑡ4Ḅ⚗ᦪ᜻ᦪÔ0NtÚ>⚗a,Û{&dᔣªÝᑖÞt⚗…,a—2d,a-4,a,a+a,a+2dL.#Øᦪᑡa,JḄ

34⚗ᦪᏔᦪÔ0NtÚª⚗ᑖÞa-+d,Û{&21ᔣªÝᑖÞt⚗:••-3d,Q—d,a+d,a+3d,•••2.⌴}ᐵÒ'᪀⌼ᦪᑡḄ,Õåæ¹1ºᓄ¹+2—4Eº>¹஺ᵨ>4º=,ᦪ0ᑣ஺Ḅ>GAᦪᑡ#111.,¹2ᓄ--------------=,ᦪ0ᑣ------
cN{0Aᦪᑡ#%+ca,,+ca+cn¹3ᓄç;>è=,ᦪ0ᑣéAᦪᑡ#¹4ᓄ஺3-?=,ᦪ0ᑣd
Aᦪᑡ#11,1,¹5ᓄË--------I——=,ᦪ0ᑣË>cN{0Aᦪᑡ.s,+cS„+CS„+c3.ᦪᑡ/஻⚗2&'Ḅêᵨ᪷@ëḄ\]ᩩi⌱ᵨ@ëḄ2&'0;\]✌⚗2&0ᑣIᵨS,=na+஻J7Id#1;\]%⚗&'0ᑣIᵨs“="¹ᵞíº,ëÔ9:Ðឋï2“a+a=4+an-\=“3+an-2=…”ḄᔠIᵨ.
nᐺ6Z⚞77ciτ—3ᐺ64\]ᦪᑡ4
04=F0Ø஻Ô0H=ñ0—7,ᦪᑡ4
Ḅ%⚗&'.3+14a-44a—4ூr᪆௃Ø஻22Ô0+1,ᓽ஺">1=஺">òτ,3a“-i+l3a„_,+11_3%+1311_3ªÝëÔó᎔ᦪ0J—+--------a“T4%-44«„-i-1%_1-141,133ᡠ{ᦪᑡ—7
A{-7=õ✌⚗0ö&Ḅᦪᑡ,÷-144133,ø3஻ᡠ{----7=T+NJ஻_D=TQa-\444n3஻+4ᦑ4(neN*).3஻

35ᐺ65\]S.ᦪᑡḄ/஻⚗20ù%=7,$4=16.(1)ᦪᑡË,Ḅ%⚗&'#,1(2)ta=-----ᦪᑡ^,Ḅ/஻⚗2anan+\ூr᪆௃(1)tᦪᑡ%Ḅ&",a4-3d—7}ú⚪:JûrJ஺1=l,d=2,4q+6d=16ᑣ=1+2(஻-1)=2n-l.ᦑᦪᑡGḄ%⚗&'a=2n-l.n(2)ᵫ(1)Ja=-------!-------=-(--------—),"(2஻-1)(2஻+1)22஻-12/?+1ý1r/11ஹ/'z111“1ஹn…TQ=7«-)+(7=)^----------------7)]=~7)=-----23352n-l2n+l22஻+12n+lYlᦑᦪᑡKbMḄ஻⚗T஻=-----.n2஻+1!"#$3.&'()ᦪᑡ*4,Ḅ"⚗S"/0$3=0,5=-5.5(1)4*%,Ḅ6⚗7"(2)44+஺4+%■1----%?+1•ὃᔣ/ᦪᑡR|%|TḄ஻⚗<ḄE1.4ᦪᑡ*I%1,Ḅ஻⚗Ḅᐵ>?ᑖABC⚗DEḄBC⚗DFḄᨬHIᓄDKᣵMNOPQRḄᦪᑡST4.2.U*4,Ḅᔜ⚗WDXFᦪY*|஺“1,Ḅ஻⚗[(\*],,Ḅ஻⚗U^_⚗`aᔜ⚗WDFᦪ(ᡈEᦪ)Y4*I%1,Ḅ஻⚗⌕ᐙᑖᑭᵨ*4,Ḅ஻⚗7"g᪵ijᓄk⚪mn.3.Uᡠ4Ḅ஻⚗Ḅ⊤q"◤ᑖstuvYᐸxyzᵨᑖ{|ᦪ⊤}.

36ᐺ⚞ᐺ6&'ᦪᑡ*4,Ḅ஻⚗DS“=-3஻2+49஻.1ᦪᑡ*a,J?ᔲD()ᦪᑡ᝞y?2a=4ᦪᑡJḄ஻⚗.ூk᪆௃পᵫS“=-3n2+49%S„_,=3“-12+49«-l/n>2,"a=-6஻+52஻>2,ᵫa1=S]=46,%=-6n+52,n\?ᵫa-a=-6'ᦪᑡ*N,D()ᦪᑡ.n+ln2ᦪᑡᱥ,,Ḅ஻⚗D7,UY]=3஻2+49஻;U”>9Y7=2s&-S“=400—(3஻2+49஻)=3஻2-49஻+400.—3n2+49஻(஻<8)ᦑᦪᑡ,Ḅ஻⚗D7,3n2-49஻+400(஻>9)ᐺ7ᦪ©U*஻“,/0■^■+«~+¬~1---]]\=n.14ᦪᑡ*q,Ḅ6⚗7";24ᦪᑡ*°|,Ḅ஻⚗ூk᪆௃1”,=—^ߟ3²³ᑡ/„Ḅ஻⚗DS”3ᑣᨵS“=஻."11-2஻U஻=1Y"=S]=1U஻22Yb=ST-SYτ=஻஻-1=1.1f^/>=],ᓽ%—=1,k஺“=112஻.11-2/72ᦪᑡ*”“,Ḅ஻⚗DᓃU஻>5Ya„=\\-2n<0,ᡠ¸ᨵU“V5YT=|a,|+|a|+---+|a,,|=O]+a+■■■+a=P="(»¼")=_஻2|n22nn+Oz;;

37U஻>5YT=,||+|஺2|+…+|%|=»+%+-+%-
4+%+,,•«„n=6-
ᓃ-6=26-2=2ஹ½¾^--஻2+|஻=஻2|0஻+50[-n2+10஻,“<5¿ÀT=\,.[஻2—10஻+50,n>5!"#$4.&'S“D()ᦪᑡ*6,,Ḅ஻⚗4=2,S=-252.21(1)4஺“(2)=+H---+-|«„|>4ᓾὃᔣU89ᦪᑡḄឋ1ḄVᵨ()ᦪᑡḄឋÅ?()ᦪᑡḄÆÇஹ6⚗7"¸Èn⚗7"(ÉẠ'ËḄÌÍ«!Î,ÏÐÑÒᮣÔzᵨgCឋŸᨵᦔஹÖ×ஹØᣩᙢkÛÜÝ()ᦪᑡ⚪.k⚪Y⌕ÞßឋÅàᵨḄ▲ᑴᩩäåᔜឋÅḄx᪀ᱯè?Eåk⚪Ḅé.᝞m+n^p+q,ᑣ+஺“=%+ê(/஻,஻,p,qeN*),ïᨵUðQñ(ஹ⚗ᦪYòᡂô.ᐺ⚞ᐺ8&'()ᦪᑡḄ7)a>0,%%=-12,%+஺6=-4,ᑣ$20=.ூõᫀ௃180÷k᪆øᵫ஺4+%=2%=-4n6=-2,ᑣ0cl=(஻5-2d)(%+2d)=4—4t/2=-12=>d=±2,3iYd>0,ᑣd=2.ᑣa-a—4d=—10,஺ü)=%+\5d—28,x5ᦑ$2஺=ýþ1=180.

38ᐺ9ÿ
ᦪᑡḄ10⚗Ḅ30,30⚗Ḅ10,40⚗Ḅ.10x95=10a,+4=30,02ூ᪆௃1ᐸ✌⚗q,#
d,ᑣ<)q=~>j஺S30=30al+4-஺“ஹ40x39,“ஹ2140x39,4ஹdJ=----ᦑ⎃஺=40a+------d=40x4+-------x5---6=-40.15401252152᧕8ᦪᑡS3S2o-50,530-520,540-530ᡂ
ᦪᑡ;ᐸ#
4,ᑣ3⚗Ḅ3%+=4=§30=10,ᓽ/+4=£;QQCdo=3O,ᡠF4=4G;80ᡠFS-S30=Eo+34=30+3x54~—6=-50,4nᡠFSto=-50+S--40.35o=lOOp+lOq=3O2133Sn=pn'+qn,ᑣ<;)P=-OP=5S30=900p+30q—10213213^S=--n2+—n,ᡠF%=-Q*402+S40=-40.llsV4VᦪᑡW4XY
ᦪᑡ;ᡠFᦪᑡW஺XZY
ᦪᑡ;[5஻;^6ᙠ4ᩩ`annc

395.
ᦪᑡW%XஹZXḄ஻⚗ᑖS“7w;=;;ᑣ=&23஻+6b+[஺51617A.——B.-1509497C.—D.4466ὃᔣX89ᦪᑡḄ஻⚗<ḄᨬZ[⚪1.ᦪ+(q—ὡ)஻=][஻—(]—-j-)]2—2—~^2,ᵫᦪḄᨬᜧ¤ஹᨬ¥¤Ḅ8¦§“eN*8;஻ªᨬ«¬g-®Ḅ¯᦮ᦪ;S“ª)ᨬᜧ(¥)¤.±2a²³´;ᨬ«¬µḄ¯᦮ᦪᨵ1·ᡈ2·.2d³´¹º஻¯᦮ᦪ»4◚½ᩩ¾.2.¿⚗#À420(஺“40)ᡂÁᨬᜧḄ஻¤ᓽ.4Âᙢ;
ᦪᑡW%XÄ;%>0,ÅSp=Sg(p/4),ᑣজ஻+4Ꮤᦪ;ᑣ஻=ȵ;S,ᨬᜧwঝP+4᜻ᦪ;ᑣ஻=P+^-lᡈ஻=P+^+l,S”ᨬᜧ.S>S„.*3.Ìᵫ\""T(஻22,஻eN),ÌÏÐÑnḄÓ;ÔÕÐÑnḄ¤>Sn+is”Ḅᨬᜧ¤.ᐺ×Ø⚞ᐺ×10Ú8ᦪᑡW/XY4·
ᦪᑡ;Å4=1;%=-5.(1)W4XḄ¿⚗Ûw(2)W4XḄ"⚗S”Ḅᨬᜧ¤.

40ூ᪆௃(1)ᵫ⚪´81=ÝÞ=ß1=—2,5-25-2ᡠ^=a+(஻-2)d=l+(/i-2)x(-2)=-2/1+5.2H(H.-\o/\2(2)Vq=3,ᡠFS.=3஻+-^^-(—2)=-஻2+4஻=4(஻-2)~+4,᪷áᦪḄâã§ឋ|8;஻=2;஻⚗ª)ᨬᜧ¤;ᨬᜧ¤4.ᐺ×11Ú8ᦪᑡW4X",eN',஻⚗S,=(a”+2)2.O(1)äWmXY
ᦪᑡw(2)b=—a,-30,ᦪᑡWæXḄn⚗Ḅᨬ¥¤.n2ç᪆g(1)ᵫÚ8)8sk(m+2);ᑣ8s஻-é(௃+2)2(ê2),ëìí;)8஺஻=(`+2î4(᝞_1+2)2,ᓽ(ð-1-4)=0.V€N”,ᡠF஻஻+஻,—>(),ᡠFa,-a-i=4(n>2)/t9ᦑᦪᑡWmXYF4#
Ḅ
ᦪᑡ.(2)ò஻=1,)Si=tzi=-3i+2î,)0=2.8ᵫ(1)8bᡝ2+(஻-1)x4=4஻-2,ᡠFb=—302஻-31.n231ᵫ62஻-31<0,)n<4,2ᓽᦪᑡZXḄ15⚗õ¤;ê16ö>0.ᦪᑡWæXḄ஻⚗15x14ᑣ÷ᨬ¥,ᐸ¤ø=15X(—29)+'y—x2=-225.6.Ú8
ᦪᑡW%XḄ஻⚗S.ᨵᨬᜧ¤;Å5<-1,ᑣûüS“>0Ḅᨬᜧ¯᦮ᦪ஻஺6Ḅ¤A.6B.7C.10D.12

41ý[þᐵᦗ1.
ᦪᑡ%q=2,=32,ᑣ஺3+%+%ḄA.51B.34C.64D.5122.
ᦪᑡ%%+1=-3,6=27,஻£N*ᑣḄA.12B.15C.39D.423.ᦪᑡq
Ḅ஻⚗S஻2%+%-%=18J|JS-S=63A.18B.27C.36D.454.
ᦪᑡ30=93%஺2+ᒹ+4=9,ᑣbgg(஻5+%+%)=A.3B.—311C.D.-335.S“!ᦪᑡ"Ḅ஻⚗S“=2஻2,ᑣ4
!A.#ᦪᑡ$%!ᦪᑡB.ᦪᑡ$%!#ᦪᑡC.ᦪᑡ&'!#ᦪᑡD.()#ᦪᑡ')ᦪᑡ6.
*⚗ᦪᑡm
“1=1,+=2,%,=+ᑣ஺6=A.2,B.4C.16D.457.ᡃ.ᓭᓅ123Ḅᦪ4℉6789:;<=ᨵ?᪵AB⚪DEᨵᓝGHGIJKLMNOPQGᐜᐭTKUVᢝXUGYᐭTKQKᢝZQG[ᑮὅ^M_`BᔜTKbcdᑣefgᦪ4hḄẆjkᦪ4B⚪ḄᳮmnAGᡠTKpᦪqrgḄᨬt!

42UTVD.V118.zᦪy=/(x)RPḄ᜻zᦪᙠRP!ᓫzᦪzᦪg(x)=/(x-5)ᦪᑡ%ᦪᑡ%0,g(4)+g(%)=0ᑣ6+4+…+%=A.45B.15C.-45D.09.ᔜ⚗ᙳ%Ḅᦪᑡ”“Ḅ஻⚗S”
0>%0஺=0,ᑣ%111—+—+•■•+—>0ᡂ£Ḅ*᦮ᦪ஻Ḅᨬt!qa2A.9B.10C.11D.1210.
ᦪᑡ4Ḅ஻⚗S“b=6,ᑣ34—2%)=.11.ᦪᑡ4Ḅ!d,ᐸ஻⚗!S“q=d=l,ᑣ«Ḅᨬt!an12.ᙠᦪᑡ%
q+%=12,+%=(1)¬ᦪᑡ஺,JḄ®⚗(2)¬஺3+஺6+஺9---a3n.13.
ᦪᑡa“q=9,a+a=0.47

43(1)¬ᦪᑡ4Ḅ®⚗(2)±wc2ᦪᑡ4Ḅ஻⚗³Tᨬᜧ?14.
ᦪᑡ¶70,S”!·Ḅ஻⚗4=3=3஻2஺“+5_|,஻22.(1)¬ºDᦪᑡ4+aMᦪᑡ.n+i(2)¬Ḅ஻⚗S”.15.
*⚗ᦪᑡ%D4S“=d+2a“-3,ᐸS”ᦪᑡqḄ஻⚗.(1)¬ᦪᑡ4Ḅ®⚗(2)a=2…»ᦪᑡ'Ḅ஻⚗¼7=½2a…d¾¬7Ḅᨬt.

44¿®ÀὃÂ1.Ã2017ÄÅÆ
ᦪᑡḄÇ஻⚗S”ᑣ“ᑁ0”!6+S6>2S5”ḄA.ᐙᑖ%Ë⌕ᩩÎB.Ë⌕%ᐙᑖᩩÎC.ᐙᑖË⌕ᩩÎD.(%ᐙᑖ'%Ë⌕ᩩÎ2.Ã2019ÏÀὃᐰ.HIᔁᦻᦪÆ»S“ᦪᑡ%Ḅ஻⚗%=5,%=13,ᑣS]o-.3.Ã2019ÏÀὃÅ×ᔁÆ
ᦪᑡN"Æ!ᦪᑡS“!ᐸ”⚗.4a5+4=°S9=27,ᑣSḄ!.s4.Ã2019ÏÀὃᐰ.IᔁᦻᦪÆ»S,ᦪᑡmḄ஻⚗
S9=-45.Ã1Æ“3=4,¬Ḅ®⚗Ã2Æ6Zi>0,¬TSÞa”ḄnḄ³à.

455.Ã2016áâ᪗ᐰ.IIᦻäÆᦪᑡ4/+%=4,%+%=6.Ã1ƬḄ®⚗Ã2Æ=[%],¬ᦪæIJ஻,Ḅ10⚗ᐸ[ç⊤é%êëxḄᨬᜧ᦮ᦪ᝞[0.9]=0,[2.6]=2.íîὃïᫀ,ñòó-----1.ூm᪆௃(1)
ᦪᑡ%ᦪᑡᐸ஺ᨵa,=q+(஻—l)d,ᑣS஻=a+4+4----
÷!5஻=4+(4+d)+(4+2d)+...+[4+(஻-1)஺],জùS,=a,,+(«„-

46টঞ,᦮ᳮ4ᵨ-an=an-(஻22),ᓽ2an=a,+an+\9ᡠ#ᦪᑡ3%5678ᦪᑡ.ூ;<=>௃@⚪B⌕ὃEF᎔HI#J78ᦪᑡḄLMNOP᫏⚪.78ᦪᑡḄLMRRSᵨ#TUVWI:(1)YZI,[\LM=d(d]Rᦪn>2)ᓽ^_(2)78P⚗Ia[\LMᐸcd2%=a,i+a,+1ᓽ^.2.ூeᫀ௃Cூg᪆௃᪷j⚪kᦪᑡ3l5678ᦪᑡm“1=3,n8d=2,ᡠ#a஻=m+(஻-1)d=3+2n-2=2/7+1,op]஺q=2+1=஺1+஺2+஺3+஺4+஺5=5஻3=35(mWN*),ᡠ#6=17,ᦑ⌱C.ூ;<=>௃@⚪ὃEF78ᦪᑡḄ[⚗nuv஻⚗wnuxyz{6ᐵ}NO~Ạ⚪.⚪k஺”=2஻+1,m41+஺2+஺3+஺4+“5=5஻3=35,஺஻=35gWᓽ^.34+.d=03.ூg᪆௃(1)ᵫ78ᦪᑡḄv“⚗wnu^u5x4du5qH-----——=~5g4=1d=—1,ᑣ3%5Ḅ[⚗nu]4=1-(஻-1)=2-஻.(2)♦••4]78ᦪᑡ,:.a+a+a+---+a#1]✌⚗#3]n8Ḅ78ᦪᑡy473n+l(n+l)(n+l-l)x(-3)(n+1)(2—3”).•.%+%+/+•••+%,+i=஻+1+-----1—q—--ூ;<=>௃@⚪B⌕ὃE78ᦪᑡḄ[⚗nuḄg#J78ᦪᑡḄwnuὃEḄz{.4.ூg᪆௃(1)ᵫ஺4=4+3஺=2,J⎃=21q+2104=-252,ὶg4=8,[=-2,

47ᡠ#a“=q+=]0-2஻.(2)ᵫ(1)a“=10-2n,^>0,஻26/<0,ᡠ#W5T=S“=a+a+---+a=9஻-],n]2n஻26(,=(q+/+…+%)—(4+%+,—^஺”)=-S”+2S5=஻~-9஻+40,_9n-n2,l6ூ;<=>௃@⚪B⌕ὃEF78ᦪᑡḄ[⚗nuḄ~@ḄS{#J78ᦪᑡP¡¢ḄwḄgᐸPgeP£¤78ᦪᑡḄ[⚗#Jᔠᳮᑖ§¨©6geḄᐵ}Ḽ«ὃEFᑖ§¨©¬#J®ᳮ¯S{NO~Ạ⚪.5.ூeᫀ௃Dூg᪆௃ᵫ⚪ka±+41+஺20=344+²=2%S21ali2x21+749%49237V--21=----=-------——,ᓽ---=—x—=—T2313x21+669h6921923l2.“2+41+_2.·+492b126,@⚪¸y⌱⚗]D.ூ;<=>௃@⚪ὃE78ᦪᑡឋºḄ»ᵨᐵ}6¼ᑭᵨP⚗Ḅឋº¾¿⚪Àᓄ]PÂ⚗ÃÂḄÄÅ.6.ூeᫀ௃Cூg᪆௃Ç78ᦪᑡ345Ḅn8]஺p]78ᦪᑡÈ“5Ḅv«⚗wSnᨵᨬᜧ¢ᡠ#஺<0,oÍ<1,ᡠ#%>0&<03m“5+஺6>°ᡠ#Ao==5("+4o)=5(%+«)>0,6Ñᓽ)"<஺

48ᡠ#cdE,>0Ḅᨬᜧ¸᦮ᦪ஻Ḅ¢]10.ூ;<=>௃@⚪B⌕ὃEÒ78ᦪᑡv஻⚗wᨬᜧḄ᦮ᦪ£¤78ᦪᑡwnu#J78ᦪᑡḄឋºᓽ^NORὃ⚪Ó.gᐜÇ78ᦪᑡ4
Ḅn8]4,᪷jv”⚗wS“ᨵᨬᜧ¢ᑮd<0,Öᵫ&0,஺6<0,mØ+஺6>0,᪷j78ᦪᑡḄwnu#Jឋºᓽ^±ÙÚ.ὃ=Ûᐵ'-Z-------------1.ூeᫀ௃Aூg᪆௃p]3஺"5]78ᦪᑡᡠ#%+%=%+஺7=2%%+%+஺7=51ᡠ#⌱ÜA.ூ;<=>௃@⚪B⌕ὃEF78ᦪᑡÄÅ«⌕ḄÝឋº_ᙠ78ᦪᑡPßm+n=p+q,ᑣà=4,+4,NO~Ạ⚪.2.ூeᫀ௃Bூg᪆௃ᵫ⚪k஺Ḅ%=-3,ᡠ#4
]78ᦪᑡmn8]3,ᡠ#=q+(஻_l)d=27+(“_l)(_3)=30_3“ᑣ%=30-3x5=15,ᦑ⌱ÜB.ூ;<=>௃@⚪B⌕ὃEFᑨâ6ᔲ]78ᦪᑡ#J78ᦪᑡ[⚗ḄINO~Ạ⚪.g@⚪᪷j78ᦪᑡḄYZ^ᦪᑡ3%5]78ᦪᑡ±[⚗nuᓽ^.3.ூeᫀ௃Bäg᪆᪷j78ᦪᑡḄឋº-S3=4+%+%=3%å2a6+4]=2஺6-24=2(஺6)=2æ=18,ᡠ#%=9,ᡠ#$6-53=27,ᦑ⌱B.4.ூeᫀ௃Bäg᪆ᵫᦪᑡ/cd=93%=3"”+2,^a=a+2,ᡠ#ᦪᑡKa,M67n+in8ᦪᑡn8]d=2,ᡠ#/+%+]=஺2+%+4+9"=9+18=27,ᡠ#

49log(a+o+«)=log27=-3ᦑ⌱ç15791_33ூ;<=>௃è⚪ὃEḄ6ᨵᐵ¡ᦪ¢Ḅg¿⚪éJᑮḄê=ᨵᢣᦪuḄS{ឋº78ᦪᑡḄឋº¡ᦪ¢ḄgNOìᓫ⚪î.ᑭᵨïᩩñᑨâ±ᦪᑡ3%5678ᦪᑡ±n8ᑭᵨ78ᦪᑡḄឋºᓄìgᓽ^.5.ூeᫀ௃Bூg᪆௃஻=1q=$=2x1?=2_஻22a-S-S,i=2r?2-2(஻I)2=4஻-2,nno“=1q=4-2=2,cd[⚗nuᡠ#òᦪᑡ]78ᦪᑡ.ᦑ⌱B.ூ;<=>௃@⚪ὃE᪷jᦪᑡv஻⚗wᦪᑡ[⚗ókôõḄnu¡஻=16ᔲ〉ᵨ.6.ூeᫀ௃BI22ூg᪆௃p]/=)÷1øL,ᡠ#2%2=ù+a+*2,ᡠ#ᦪᑡaa]78ᦪᑡp]=a2-a,2=4-1=3,aj=1+=3஻2,p]a”>0,pò2a=sj3n-2,a=V16--4ᦑ⌱B.nbூ;<=>௃ᐜ᪷j78ᦪᑡḄYZJᐸ[⚗nu±Ö᪷j¸⚗ᦪᑡᩩña,”ᓽḈLMᡈᑨâq]78ᦪᑡḄWIa(1)ᵨYZLMaý±4=1(1]Rᦪ)_(2)ᵨ78P⚗LMa=a,,+a_n+2(3)[⚗Ia஺“]஻Ḅþÿᦪ
(4)஻⚗S=An2+Bn.n7.ூᫀ௃C

503a,+3d=4ூ᪆௃✌⚗4,d,ᑣ᪷⚪ீ”.4q+30d=337/7a.——,a-------.126787ᑣ!"ᡠ$%ᦪ&'()Ḅᨬ,)-.-0.781⚪⌱3C⌱⚗.ூ4567௃1⚪8⌕ὃ;<ᦪᑡ>ᐸ@ᵨBCDẠ⚪.FGᵫ⚪IJK⚪L377ᓄ<ᦪᑡḄK⚪ᑡNOPq=Qᔠ⚪ST!"ᡠ$2678%ᦪ&'()Ḅᨬ,).8.ூᫀ௃Aூ᪆௃ᵫ⚪g(q)+g(%)=0,ᡠU/(q—5)+/(%—5)=0,WXYᦪy=/(x)ᓫ[\᜻YᦪᡠU4ߟ5+4-5=0,ᓽ4+%=10ᓽ=5,_Qᔠ<ᦪᑡḄឋaq+a+---+a=4(4+%)+6=c)+5=45,ᦑᫀA.2gூ4567௃1⚪8⌕ὃ;᜻YᦪḄឋaஹ<ᦪᑡḄឋa1⚪gh4+%=1஺-⚪ḄᐵkBCl᫏⚪.9.ூᫀ௃Cூ᪆௃ᙠ<ᦪᑡo““qlᵫ00=0,("1+30)x10=0,ᑣx+y0=஺2+஺9=஺3+஺8=஺4+஺7=஺5+஺6=0.Wy0>஺9,zᦪᑡo஻஻q⌴|ᦪᑡ,ᑣ<°஺6>04஺10%஺9஻3஺8஺4஺7஻506111111jn—\\G---1-----1-----1---->0,4«24111...<+—+…+—>0ᡂḄ᦮ᦪ஻Ḅᨬ,)-11.«i«%,2

51ᦑ⌱c.ூ4567௃1⚪8⌕ὃ;<ᦪᑡḄ஻⚗ஹ<ᦪᑡḄ᪗ឋaὃ;Lᓄg>ᦪᑡḄᓫ[ឋ@ᵨBCl᫏⚪.10.ூᫀ௃—13᪆௃V<ᦪᑡo4ql=6,s=13—=13
2%=6,%i3<ᦪᑡo4qḄdᑣ3%-2a=2%-0+%=%-2d=%=ᢝ.l0ூ4567௃᪷<ᦪᑡl᪗Ḅឋan⚗Fᓽ¡+஻=p+qKm,n,p,qeN*,ᑣa+a=a+a,¥!ឋa¦§n⚗mnpq஻q+%Qᔠᙠ©@ᵨ,ᑭᵨ᦮«¬ᣚḄN®¯°ᓫ."2911.ூᫀ௃-2᪆²ᵫq=d=l,z=g஻2+஻,y,=஻,ᑣ5“+8nr+n+\6n81ஹ9.9——=---------=·++·2\¸஻=4G¹<º.ᦑ».aIn2n22212.ூ᪆௃᪆Xoy,q-<ᦪᑡ,6+%=12,4+4=18,2%+2d=12,ᡠUyd=3,4=3.2a+4d=18.tᑣa”=3+(஻-1)x3=3஻஻eN".2%஺6,᪀ᡂ✌⚗%=9,9Ḅ<ᦪᑡ.19,ᑣ4+4+----1-=9«+—n(n-1)x9=—(«+஻)ூ4567௃1⚪ὃ;<ᦪᑡḄÀ⚗"⚗Ḅ@ᵨBCDẠ⚪.1IÁzᩩÃLᐵC✌⚗ḄNOPNOPFhÄyÅÆFÀ⚗
2ᵫÁz□4,…஺3”᪀ᡂ✌⚗Ḅ9Ḅ<ᦪᑡᑭᵨ<ᦪᑡ஻⚗ȯᓽ.

5213•ூ᪆௃(1)ᵫ⚪<ᦪᑡo4qla,=9,a+a=O,47ᑣq+3d+q+6"=0,d=-2,ᡠUᦪᑡo஺“qḄÀ⚗4,-a+Kn-\)-d=11-2஻.x(2)ᵫ(1)z4=9,d=-2,…n(n-\M/ஹஹ2ᑣS„=9஻+'2•(-2)=-*+10஻=(஻-5)~+25,...஻=5GS”¹ᨬᜧ).·ᵫ(1)zq=9,d=-2<0,•••o%q-⌴Îᦪᑡ.Ï&N0,ᑣ11—2஻20,
஻wN*G”“>0Ga<0.n...஻=5GS”¹ᨬᜧ).ூ4567௃1⚪8⌕ὃ;<ᦪᑡḄÀ⚗FU><ᦪᑡḄn⚗Ḅᨬ)K⚪ᐸllÓÔ<ᦪᑡḄÀ⚗U><ᦪᑡḄ஻⚗Ḅᨬ)K⚪ḄFNÕS®¯-ḄᐵkḼ×ὃ;Øᳮ®¯gBCl᫏Ú⚪.14.ூ᪆௃(1)஻22GSj=3஻2aa+S_|,মS஻T)(S“+S“T)=3”4,a“N0,ᡠUS.+Si=3n2,ᑣS7+S„=3(஻+1)2,(@%Î/+4+i=3(2஻+1),ᡠU(a+a)-(a_,+)=6஻+3—(6஻-3)=6,nn+lnW஻=2G(3+a,y=12a2+9,
.a=6,2ᡠU4=9ᡠU4+஺3஺1+4=6+9-6+3=6,

53ᡠUᦪᑡo%+6mq<ᦪᑡ.(2)஻ᏔᦪGSn=(q+a))+(%+%)++(஺”-1+஺")=3[34-7+…+(2஻-1)]YI-(3+2/1-1)3=3■—---------=—(n2+ri)'22஻᜻ᦪGS“=q+(«2+«)+•••+(«„_1+«„)3n—\,,c.ஹ(5+2஻-1)è=3+3[5+9+-+(2஻—1)]=3+3-^------------=—("+஻—2)+322=3஻2+஻).êëூ4567௃1⚪8⌕ὃ;<ᦪᑡឋaḄìíὃ;<ᦪᑡFᙠὃ;îï(¥ðzñḄᳮòóôõᑖ᪆Øᳮg.(1)ᐜᓄ°øz(S„+S„-)=3n2,(S+S„)=3(஻+1)2,_Fha+a=6n+3,1n+Inll+l_ìíᦪᑡo4+a,,+iq<ᦪᑡ
(2)("ᑖ᜻ᦪᏔᦪúûüýþ.15.ூᫀ௃(1)=2/1+1
(2)—.16ூ᪆௃(1)஻=1Gᨵ4sl=+2q—3,5=q,a—2q-3=(),>0,.q=3.“22ᨵ4S“=cr+2a“34S„_1=i+2a_,-3,nn=a”,!"#$ᓄ&'((4+)_])(4,-4_1-2)=0,%>0,%-qT=2,1ᑣᦪᑡ0%12334✌⚗2478Ḅ:8ᦪᑡ,

54/.a=4=2஻+l,nᦑᦪᑡ4
Ḅ=⚗7"4>=2஻+1.(2)ᵫ(1)@,%=2஻+1,AB=%-6=2஻-5,ᑣᦪᑡᓃ12334✌⚗2478Ḅ:8ᦪᑡᡠ3ᦪᑡ0%1ḄE஻⚗F4G+஺2+…+q,=஻2-4஻஻=2/4஻ᨵᨬJK-4.a=2L(ᡠ3ᡠ=b[b2b3•4b20ᨵS+S-25>0,ᓽS4+S6>2SS§4+S6>2S5ᑣd>0,ᡠ3“0”4652“S4+S6>2&”Ḅᐙ⌕ᩩ⌱C.ூOPQR௃T⚪ὃY:8ᦪᑡḄE஻⚗F7"=ᝅᐭ7"q&ᓫs|@S+S-2S=J,ᔠᐙᑖ⌕ឋḄᑨIpnq,ᑣP24Ḅᐙᑖᩩ465P<=4ᑣP2஺Ḅ⌕ᩩ⚪"d>0"o"S4+S6-2S5>0"ᦑ4ᐙ⌕ᩩ.2.ூgᫀ௃100

55ூf᪆௃A:8ᦪᑡ01Ḅ784d,᪷⚪|'%=4+2d=5q=l%=q+61=13'd=2'10x910x9..S]o—1OqJ=10xl+-^-^-x2=100.22ூOPQR௃T⚪ὃQ4:8ᦪᑡḄ`F4vẠ⚪¤ᑭᵨvT¥¦§f⚪ᓽ|ᐙᑖcᱞ:8ᦪᑡḄ`F7"2f⚪Ḅᐵi.3.ூgᫀ௃16a2a5+஺8=(%+d)(q+4d)+(q+7d)=0ூf᪆௃ᵫ⚪|'(ீ9x85=9«,+—J=279a.——58x7f'(J1,ᑣSg=8q+®d=—40+28x2=16.d=22ூOPQR௃:8ᦪᑡஹ:°ᦪᑡḄvTrsa⚪2ὃὃᑁ²f⚪³´⌕µ]ᵨ¶ᦪd³¦§ᮣ¸]ᵨ=⚗7"ஹ`F7":᪀ºd³(»)᝞T⚪½¾@z¿᪀º6,4Ḅd³».4.ூgᫀ௃(I)஺“=-2஻+10(2)1<«<10(HGN*).ூf᪆௃(1)A0%1Ḅ784d.ᵫS9=-a'q+44=0.5ᵫ'4+2d=4.u2q=8,d=-2.ÁÂ0a,JḄ=⚗7"4஺“=10-2஻.(2)ᵫ(1)'q=-4d,ᦑan=(஻—5)d,S"=",4ு.ᵫ>0@d<0,ᦑS.:Æu஻2—+f'iw“0O.ᡠ3஻ḄÉKË20ÌூOPQR௃⚪ὃYḄ2ᨵᐵᦪᑡḄa⚪Í_ᑮḄ@ÏQᨵ:8ᦪᑡḄ=⚗7",

56:8ᦪᑡḄ`F7"ᙠf⚪Ḅ³´◤⌕ÒÓᑖ᪆⚪bÔÕÖvẠ@Ï2×Øf⚪Ḅᐵi.5.ூgᫀ௃Ù1Úa=~^—jÙ2Ú24.nூf᪆௃Ù1ÚAᦪᑡ01Ḅ784d,ᵫ⚪ᨵ2%+5d=4,2q+10d=6,f'q=l,d=|,ᡠ30%1Ḅ=⚗7"4%=஻5Ù2ÚᵫÙ1Ú@ᒹ=[Þ3],,42n+3J<"=1,2,3<2,2=1,à2஻+3_,á஻=4,52<ߟ--<3ã=27,834:3<4,2=3஻=6,,“2஻+3,.."=9,104Ùä<5,2=4,ᡠ3ᦪåU{஻}ḄE10⚗F41x3+2x2+3x3+4x2=24.ὃ
228kᦪᑡ:ᐸ஻⚗<Ù1Úᳮf:°ᦪᑡḄᭆê.Ù2ÚÕÖ:°ᦪᑡḄ=⚗7"qE஻⚗F7".Ù3ÚnᙠᐹìḄa⚪í᛻´ÏïᦪᑡḄ:°ᐵyðnᵨᨵᐵ@Ïfñ#]Ḅa⚪.Ù4ÚZf:°ᦪᑡqᢣᦪ¶ᦪḄᐵy.@Ï᦮ᔠஹ:°ᦪᑡ

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ᦪᑡᦪ
ᦪᑡḄ.(1)
ᦪᑡḄ⚗0(2)⚗ᐸ!⚗Ḅ!"#$%᎔'஻)ᐵḄᦪ.2.
,⚗᝞.ᙠ“஺,23ᐭᦪG,7a,G,Z?ᡂ
ᦪᑡ<=G஺>Ḅ
,⚗?@G2=a>.3.
ᦪᑡḄD⚗EFᐸGH✌⚗J,4Ḅ
ᦪᑡḄD⚗E4=q/i(q,qNO).
ᦪᑡD⚗EḄGH4=aqn-'n.m4.
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598´⚗ᦪ2஻ᑣq´⚗ᦪ2஻+1,9^4Ò—1@ÈÉ஻?⚗Ḅ᝞S,“,S2,"-S,“,S3,”-S2,“,LÄÔᡂ
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60জ2a,,=2a©i,ᡠ1ᦪᑡ2%
ᦪᑡ2ঝ3=&%2"2=42(/7ᡠ1ᦪᑡṹᦪᑡ2ঞ2"«=2Mn=|=2":;ᦪᡠ1ᦪᑡ2<:ᦪᑡ2ট=஺">=1°?@"J:;ᦪᡠ1ᦪᑡlog2|%|
:ᦪᑡ.log1a,-Ilog1%q|22ᦑ⌱D.ூCDEF௃G⚪I⌕ὃLᦪᑡḄᑨNᙠὃLPQRSTUḄᳮ*WXYZ[ᑖ᪆]ᳮ^_.`*a,bᑭᵨᦪᑡḄe[ឋg⌲ᑖ᪆ᑨij⌱⚗l*.ᐺn2oTᦪᑡ4
pqS“=2a-n(neN)lt(1)st%+1
ᦪᑡ2(2)`4+4+%'1----a2n+i(஻eN).?2n+3-3n-5ூ'ᫀ௃(1)stv*᪆(2)-------w—.3ூ*᪆௃(1)ᵫH=2q-1lq=1,zS„-S„_,=(2a„-n)-[2a„,,-(n-1)](n>2),ᡠ1a“=2%_1+1{|ᵫa”+1=2(%+1)l}~=2(஻22),an-\+1ᡠ1%+l
12✌⚗2Ḅᦪᑡ.(2)ᵫ(1)l=2”—1,ᡠ1q+Q+Q+τ=(2+23+-.+22)_(“+1)=2(14')1-422n+3-3/?-53

61ூCDEF௃G⚪ὃLᦪᑡ⌴]Ḅᵨ᪀⌼ᦪᑡstᦪᑡᑖ⚗`[TUE.᝞4+1=4+஻ᙠ᪀⌼ᦪᑡaᙠa—᪀ᡂᦪᑡ.1
ᑭᵨ⌴]1lᑮS,TḄ⊤ᓽlᑮ஺“%tḄ⊤2᪀⌼ᦪᑡ+1ᓽsta+1ᦪᑡ.n2
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stᦪᑡg,Jᦪᑡ22
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«G¬®ÓÙÚḄᦪPÛܱ²জ±ÓÛÜ.ᦪᑡḄ⚗[ªÝ⚗[ὶßḼÕ«G¬“T~`×''âᨬ«GḄîᑡ±ÓÔÀ`ᐵä¬q[q,Á⚪åᑓ|*.

62a^q=\ঝᑖâçèÛÜ.ᦪᑡḄª஻⚗[S“=1%éÀ_é/],ᡠ1?ii-q^~q~3q

63ëTᡈìᦪa⌕Rᑖq=l[ÌÍçè.îᜐ;ὃ᧕┯E⌕òóôõ.ঞ᦮µÛÜ.ᵨᦪᑡª஻⚗[a;÷L?ᡂ᦮µ`*.i—qᐺnò⚞ᐺn3oT%ᦪᑡý஽+4=3஺6+஺10=12,ᑣ஺8+a\2ÇA.1272B.24C.2472D.48ூᫀ௃B441cூ᪆௃ᵫ⚪n+%0=4+4᜛=g4=D=4,ᑣ/=2,%+஺6஺2+஺63ᡠ4+42=+4/=/4+410=2'12=24,ᦑ⌱B.ᐺ#4ᔜ⚗&'(ᦪḄ+,ᦪᑡ.q012a,3%24ᡂ+6ᦪᑡ2ᑣ71Ḅ892V5+1

642.ᦪᑡ.“"012q=2,4+]=2a“2S”9.%0Ḅv஻⚗x2yS“=62,ᑣ"=.ὃᔣ+E8kᦪᑡḄ⚗:஻⚗<1.z+,ᦪᑡḄ{⚗Am2H|ᐜz~✌⚗A,2ᑭᵨ=4/1z.ᙠ2ᑭᵨ+,ᦪᑡ{⚗AmḄl4=a,1"'"Fᓄ⚪.z{`a+,ᦪᑡḄ@⚗_⚪2ᵨḄ@⚗9c(1){⚗.@ᦪᑡḄ{⚗Am=aqn-'ᩭz3y(2)@ᐗcyᡠ+,ᦪᑡḄ⚗ᦪ92஻(஻iN*)ᔜ⚗¡¢£¤2ᑣ¥eᦪᑡF@,aaa,…92n-,…2~»—ஹaq3aq3…2aq~''3qqqyᡠ+,ᦪᑡḄ⚗ᦪ92஻+l(஻ªN*)3ᑣ¥eᦪᑡF@9T2…2-,a,aq,aq"'.qq2.«gwl;y®43,஻2ᑣᵨS,=40Tz¯°;y®q,q,a“2ᑣᵨ1-qS“=஺sz¯°.1-q3.(1)᝞஺,,+|=/%,,+4(஻C1,஻(770)Ḅ⌴´ᐵµm2জᑭᵨ·¸µᦪFᓄ94+1-¹=஺(4H#-)2«4HT2ᦪᑡ.%H7"0'+,ᦪᑡ3ঝᵫ1—p1-p1-pI—P%+1=pa.+q,a“=pa_+q[n>2),½m£¾2Ga-a=pKa-a,-),«4H4T°nxn+tnn2ᦪᑡ.a,3H஺“0'A,9PḄ+,ᦪᑡ.(2)᝞a.=ca"+d"(cHd,cdH())Ḅ⌴´ᐵµm2◀ᑭᵨ·¸µᦪÄÅᓄÆ9+,ᦪᑡ᜜2ÈF½É¤◀Ê~2ËNᓄÆ9+,ᦪᑡ.ᐺ#Ì⚞ᐺ#5y+,ᦪᑡ.q0Ḅv"⚗x9S”,Î=5,ᑣ᳛+Ð

65A.5B.16C.17D.25ூᫀ௃Cூ᪆௃«A,q=l2U=2w5,ᦑA,Ñ91,q(>/)q(j)«A,2Î=)H஺,\=l+q2=5,3.q2=4,.•.Ô==1+J=17,S?4(1H᜛)S4q(l-*1-<7\—qᦑ⌱C.ூVWXY௃Ö⚪×Xὃ\Ø+,ᦪᑡḄv஻⚗x27A,4ḄᑖÚÛÜ2¥'He᧕┯X2¤7✌⚗A,ᙳÑ9à.áÖ⚪2A,qËâᑖÚÛÜ2ᑭᵨv஻⚗xAmaᩩg2z~d=4,ãNGᑮåæ.ᐺ#6®+,ᦪᑡ.ç,0Ḅᔜ⚗ᙳ9(ᦪ24=62%+4=72.(1)zᦪᑡ.%0Ḅ{⚗Am3ফyᦪᑡÈ0éêcd=%—஻(஻eN*),zᦪᑡÈ0Ḅv஻⚗xS“.277+nூᫀ௃(1)%=2x3"T(஻eN*)3(2)3"-1----------.2ூ᪆௃(1)@+,ᦪᑡ.஻0ḄA,9q,•஻2=6,஻3+஻4=72,6^+6^2=72,ᓽ/+4H12=0,Gq=3ᡈ᜛=H4.Y`>0,q>0,.᜛=3,a=—=2.1q%=2X3஻T(஻£N").(2)o=2X3"|஻,

66S“=2(1+3+32+…+3"T)—(1+2+3+…+஻)=2x^^—^1^=3"—"1-322lmno173.®+,ᦪᑡ.q0'⌴ñᦪᑡ24+%=ὡ2஺2஺4=4.(1)zᦪᑡ.40Ḅ{⚗Am3ফyb=na(஻eN*),zᦪᑡÈ0Ḅv஻⚗xS..nὃᔣ/8kᦪᑡḄឋ1ḄVᵨ+,ᦪᑡḄឋi'ôὃὃ\ḄõXöH2ᑭᵨ+,ᦪᑡḄឋizF÷⚪ø¾ùúûü2⚪ý⌱þ⚪ᡈÿ⚪ᜧ᫏⚪⌕ὃ⚗Ḅஹ⚗Ḅᵨ஻⚗Ḅᵨ.!"#(1)ᙠ()ᦪᑡḄᨵᐵ.⚪/⌕!"᢬᣾◚3ᩩ5ᑭᵨឋ8ᱯ:;ឋ8“=m+n=p+q,ᑣ஻“?=ᓽBCDBEFGHIJK(⚪L.(2)ᙠᵨNឋ8(⚪/;⌕!"ឋ8ᡂRḄJᩩ5ᨵ/◤⌕TU〉W.X᜜(⚪/!"Z[\]^ḄGᵨ.ᐺ`a⚞ᐺ`7ᙠᦪᑡd4f%h5;jkY-6x+8=0Ḅ᪷ᑣ᝛■=A.272B.2C.1D.—2ூyᫀ௃A_8ூ(᪆௃ᵫᦪᑡḄឋ8=8=d=%=2ᦑ20,2V2ᦑ⌱A.ᐺ`8ᦪᑡd%fḄ஻⚗S“=$0=20,§20=60,ᑣ=ூyᫀ௃140

67ூ(᪆௃j1#ᵫEo=2O,$20=60,᧕4±1,c1_,206஺1_,20᪷ᦪᑡ⚗Ḅឋ8D=%ᓽ/=14=1+°,(2,OJQ1—q201-q3ᡠB&=2=7,5=140.10201-2j2#᪷ᦪᑡ"⚗Ḅឋ8DS2O=BO+Q°RO,ᓽ60=20+20/°,(q=23ᡠBS30=S+”஺⎃0=20+2x60=140.l0j3#᪷ᦪᑡ?⚗Ḅឋ8DHoS-S,S30-S20ᡂᦪᑡ2010ᑣ(⎃°§AoA=5(S-S),ᓽ(60-20)2=2()(%,-60),(S=140.10302030¨©4.ᦪᑡd4“fḄᔜ⚗ᙳ¬ᦪ஺4a5=4ᑣlog2%+log24+…+log26=A.7B.8C.9D.10ὃᔣUᦪᑡḄu>v[⚪ᦪᑡ²³´.⚪µᐙᑖὃ¸¹ºḄ▅¼ஹJ½¾ᓄµÀÁᔠឋÃÄKᙠÅ▭.⚪ÇÇ◤⌕¸⚪ÈTU▅¼ÉÊ˳´TU¾ᓄᓽDTU\(.¸ÌXÍ.⚪ᐜÏÐ.⚪ḄÑ8ᯠÓ᪷ÔᦪᑡஹᦪᑡḄឋ8B()ᦪᑡ.⚪/ÕᵨḄjᓽD().ᐺ`a⚞ᐺ`9=ᦪᑡd4fÖ×A,1=A,2ᑣØᦪᑡdA“f“Ùj⌴Ûᦪᑡ”.ᦪᑡd4f+q=9,ÝᙠÞᦪ/(x)=/+2xḄßàᐸ”¬᦮ᦪ.(1)ãä:ᦪᑡd4+1f;“Ùj⌴Ûᦪᑡ”,ᦪᑡdlg(a“+DIᦪᑡ;(2)Z(1)“Ùj⌴Ûᦪᑡ”Ḅ஻⚗çèᓅ\IgZ,ë

68IgT(3)ᙠ(2)Ḅᩩ5ìíî=ï\ஹZᦪᑡ2
Ḅ஻⚗S“\ñS”>4032lg(a“+l)ᡂRḄ”Ḅᨬ?ó.ூyᫀ௃পõ(᪆ë(2)2"—1ë(3)2017.ூ(᪆௃(1)ᵫ⚪"=aë+2a“ᓽ%+1=(4“+1öᑣd஺“+1
;“Ùj⌴Ûᦪᑡ”.¸a,ᔣ+1=(4+1)2÷ø½¸ᦪlg(«„+1)=21g(4+1),+lᡠBᦪᑡ1ᵯ(4+1)
;Blg(q+1)=1✌⚗2Ḅᦪᑡ.(2)ᵫ(1)lg(am+l)=lg(q+l)-2"T=2"T,ᑣlgT„=lg[(«,+l)(a+1)…(«„+1)]=lg(q+1)+lg(a+1)+•••+lg(a„+1)=B,#)2n-l.22=1—21lgT*2"-11বᵫফ4=$=ý"=2§(5þ,5"=2”ÿ=2஻-2+2S.>4032,ᡠ2஻-2+>4032,ᓽ"+,>2017,2"~'2"஺4032ᡂḄ”Ḅᨬ2017.n5.᦮ᦪ12ᑖ"ᡂ#$᦮ᦪḄ%&ᨵ1x12,2x6,3x4()ᐸ+3x4,-()ᑖ"+#ᦪ.Ḅ/0ᨬḄᡃ233x412Ḅᨬ4ᑖ".upxq(ᔣvpஹqwN*),᦮ᦪ஻Ḅᨬ4ᑖ"6ᡃ2789ᦪf(஻);᝞/(12)=4-3=1,ᑣᦪᑡ/(3")
Ḅ@2019⚗B.

69ஹ.DEFGᐙ1.ᙠJKᦪᑡLM,O+P%%=64,ᑣḄA.8B.±8C.4D.162.RSJKᦪᑡL%OḄ@஻⚗BS,,,TK᜛P4+G=5,q=2,ᑣS’JVA.7B.13C.15D.313.RS4
JKᦪᑡ%+஺7=2,஺5஺6=-8,ᑣq+%0A.7B.5C.-5D.-74.ᙠᦪᑡ4
+W=14XY=3஺“ᑣJVA.9B.10C.27D.815.JKᦪᑡL%O+2=2,a=5,ᑣᦪᑡ1g%
Ḅ@8⚗BJV5A.6B.5C.4D.36.RSᦪᑡq
Ḅ@஻⚗B,ᦪᑡ4
[\E3"£,^_஻.^ᙠ`ay=3x-2b,ᑣ@5⚗B211B.cA.-----3216r2HC.—D.-------64327.ᙠdᜧ⁚ghijklᡃmᨵnᢞpqrs⁚gtuḄvw.xᦻz{|j}ᨵ~”Ḅᛞᐳᢞ127pq#+Ḅ~pqᦪ,b~pqᦪḄ2Ḅpqᦪ⚔ḄpqᦪB65,ᑣᛞḄᐳᨵpA.27B.81C.64D.128

708.RSJKᦪᑡLa,OḄTK4,@஻⚗B,S“ᑣ"q>0'',"S2016+S2018>2S2oi7”ḄA.ᐙᑖ⌕ᩩB.⌕ᐙᑖᩩC.ᐙᑖ⌕ᩩD.ᐙᑖ⌕ᩩ9.“ᩰ¡(¢”,+mj}d⌕Ḅᦪ£ᡂ¤ᙠᓭ¦ᦪ£§ᩰ¡ᡠ℉ḄM©"ª«¬®~¯+°±²K³´Ḅ“µ¶ᓱ(¢¸''¹300»¼᝞½,ᩰ¡(¢ᦪ▣{¿½+À"Áᔜ$ᦪBL4OḄ@஻⚗BᑣHo=A.1024B.1023C.512D.51111.ÈSJKᦪᑡL4OḄ@஻⚗Bs“S3=74,ᑣᦪᑡL4OḄTK᜛Ḅ12.RSᦪᑡLஹË~஻O,JKᦪᑡ4=9,4=36,ᑣÎ=13.Ïᔜ⚗Ð,ᦪḄJKᦪᑡL6,O,S,@"⚗BSio=lO,530=70,ÔÕ540=.14.PᦪᑡL4OḄ@஻⚗BS,[\S=2a,+n.n_1^Ö×ØᦪᑡLq,-1O,JKᦪᑡÚ_2^Ïd=log2_l-Ý^ÖᦪᑡÞß1Ḅ@஻⚗BT”.

7115.RSJKᦪᑡL஺஻O[\q4=—=§.1
ÖLOḄá⚗TÚ2
Ï…+~7~ÞÖᦪᑡâḄ@஻⚗B.1x22x3஻_ã+1anäáåὃ1.2019¼åὃᐰmniᔁᦻᦪ^RSᔜ⚗ᙳᦪḄJKᦪᑡ4Ḅ@4⚗B15,a=3%+4%,êij%=5A.16B.8C.4D.22.2018ᓅìᔁᦻí^Ï஺îcd,ïðñᦪᑣîòK”,ZîcdᡂJKᦪᑡ”ḄA.ᐙᑖ⌕ᩩB.⌕ᐙᑖᩩ

72C.ᐙᑖ⌕ᩩD.ᐙᑖ⌕ᩩ3._2018ᓅìᔁᦻí^“ᓝôõᙳö”,áᵨḄøöùúû}ᩋ|ýᨬ¹ᵨᦪ£´þ¬°ÿ
ᳮḄ⌕.ᓝᙳᑖᡂᓝ!"#$ᑮᓝ&ᓫ()ᓫ*+ᓫḄ⚣᳛./Ḅ0ᓫḄ⚣᳛Ḅ
123ᖾ.5)ᓫḄ⚣᳛ᑣ)ᓫḄ⚣᳛A.^2/B.xyC.zyD.{f4.>2017BCD2
ᦪᑡGHIḄᔜ⚗ᙳLᦪᐸ0஻⚗O5“RS⎃=V56=Xᑣ/=•35.>2019\]ὃᐰ`IᔁᦻᦪDd5“2
ᦪᑡG஻஻IḄ0஻⚗O.54=1,S=-,ᑣ354=.6.>2018ij᪗ᐰ`IᦻlDRSᦪᑡGmIno4=1,஻%=2>஻+1D%,r஻=%.n>1Dst%V>2DᑨvᦪᑡG"Ixᔲ2
ᦪᑡz{|ᳮᵫ~>3DsG““IḄ⚗.

737.(2018ij᪗ᐰ`inᦻl)2
ᦪᑡG6,I4=1,%=4%-(1)sG4IḄ⚗V(2)dS”G4IḄ0஻⚗O.5S“,=63,s.8.(2019\]ὃᐰ`Hᔁᦻᦪ)RSG4Ixᔜ⚗ᙳᦪḄ2
ᦪᑡ4=2,%=2g+16.(1)sG%IḄ⚗;(2)r”=log2a,,sᦪᑡḄ0஻⚗O.

74ὃᫀ,1.ூᫀ௃J1I᪆VJ2I—C4"-11——n.3ஹ'22ூ᪆௃J1I,:b,,=a+n,n.b=a+n+\.n+lrl+ly4+i=44+3஻-I,...᝞=4m+ஹ+1=J4%+3"-1I+"+1=4J+"D=4-b„%+஻a„+na,.+n,bஹ=q+l=l+l=2,ᦪᑡG"Ix✌⚗2,
4Ḅ2
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ᦪᑡ4Ḅ஻⚗s„.4.ூ+ᫀ௃Bூ/᪆௃᪷2⚪4ᦪᑡ5“Ḅᔜ⚗ᙳ9:ᦪ;=4ᑣᨵ4%=4%=a3a6=a4a5=4,ᡠDloga+log,%+…+log,@=log2(4%q3aM4a?4)=■og,44=8.2xᦑ⌱B.ூRSTU௃V⚪ὃXᦪᑡḄឋDYZᦪḄ[\]^_Ạ⚪.5.ூ+ᫀ௃3210-1ZI-1ூ/᪆௃ᵫ⚪4ef஻9Ꮤᦪh/(3")=0,f஻9᜻ᦪhy(3n)=2x3v-ᑣ/(3)+/(32)+/(33)+-+/(32019)=/(3)+/(33)+/(35)+-+/(32019)1_olOIO=2X30+2X3I+-..+2X3,009=2X(3°+3I+---+31009)=2X——=3IO1O-1.1-3ᦑ+ᫀ93KH°-1.ூRSTU௃V⚪w⌕ὃXyᦪᑡḄz⚪ᐸ|/+|᪷2⚪4}ᑮᦪᑡḄ\ᔠᳮᑭᵨᦪᑡḄ"#\/+ḄᐵḼὃXyᳮ\]^|᫏⚪.ὃTᐵ1.ூ+ᫀ௃Bூ/᪆௃ᦪij“|%=«2=64:.%=±8ᦑ⌱B.5ூRSTU௃V⚪ὃXᦪᑡḄ!⚗"#ឋ⚪ᵨ!⚗"#/.ᦪᑡḄឋIm+n=p+q,ᑣ%2.ூ+ᫀ௃Cூ/᪆௃ᵫ⚪}q(l+q2)=5,ᓽq=1,ᑣS4=l+2+4+8=15.

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794+a,+…+஺”=127,a(l+2,,-')=65,1ᡠDÙ/}"=7,%=1,ᡠD%=26=64,ᦑ⌱C.ூRSTU௃V⚪w⌕ὃXᦪᑡḄឋ]^_Ạ⚪¾./hᐜòçᑮóôõḄö÷ᦪ᪀ᡂ"92Ḅᦪᑡ%,ᵫ⚪4ᦪᑡḄឋᑡ¯²Ð/ᓽ.8.ூ+ᫀ௃Dூ/᪆௃ᵫS2016+$2018>2S2017}஺2018>஺2017"9"">஺ü¹'3qq236(q_])>o,/}4>0ý>1ᡈq<0Ý<1..♦.“S26+S238>2S2017”(H“>0>1ᡈ4<0,”1".ᦑ>0”“§2016+§2018>252017”Ḅᐙᑖ⌕ᩩ.ᦑ⌱D.

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⚗.13.ூᫀ௃150ூ᪆௃᪷ᦪᑡ/ᦪᑡ,S”!஻⚗#,$Sio=10()
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103!ᑘ1.$2018()*+,4M2%%ᡂ0ᦪᑡ14+a2+4+“4=1n$q+9+4*.:q>1,ᑣA.4<஺3஺2<44B.4>,%<%C.aaD.%>%,%>a&ty242.$2019EὃᓅHᔁᦻᦪ*KLMNOᦪᑡ,0=70,1“2+10,G+8,g+6ᡂ0ᦪS|J.$1*K”“MḄ⚗W$2*XKLMḄn⚗S”S,Ḅᨬ[
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107»ÇMḄ⚗W$2*ᐜᵫ$1*ḄÅÊᑮ+2=$2஻+1*+3",ÄᵫᑖÌÅᔠOᦪᑡ¸0ᦪᑡ஻⚗ᓽ»ÇÅÊ.2.ூᫀ௃$1*a=2"-',b=2n-l-$2*|<7W,<1.nnூ᪆௃$1*ᦪᑡK4MḄ04,ᦪᑡK2MḄOd,ᵫ⚪Íl+d=l+qCT=2$l+2t/*-6,%d=q=2,ᡠ¢a“=2"T2=2஻—l.11J1________(2)Ïc,=(2஻-1)(2஻+3)Ò2஻-12n+3)᝛+2ᡠ¢442n+lJ2n+3y12n+lÏ!ICL,+C1C>0,412/1+12஻+3ᡠ^T,

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109+\++⚪┯.3.ூᫀ௃10.4ூ#᪆௃ᵫ⚪&'()Ạ+,᪀ᡂ/2100ᐗ2✌⚗/210ᐗ45Ḅ65ᦪᑡ9ᦔ+,᪀ᡂ/2000ᐗ2✌⚗/4;21.1Ḅ6;ᦪᑡᑣ=>2019@AᨴḄ)Ạ+,22100+210xE10—1G=3990ᐗAᨴḄ9ᦔ+,22000x1.19*4715.90ᐗᑣ=>2019@Ḅ@L212xE3990+4715.90GM10.4Nᐗᦑᫀ2P10.4.ூQRST௃U⚪ὃWX65ᦪᑡY6;ᦪᑡᙠ[▭]^Ḅ_ᵨab᫏⚪.4.ூᫀ௃E1Gq,=2஻—1gফiS„=|xE4n-1G.ூ#᪆௃E1Go65ᦪᑡp%rḄ452”3/0G,ᑣᵫ4=1(஺2=4+"=1+°g%=4+4x=1+4d,z2i2{஺5Ḅ6;⚗ᡠ/W=a/%ᓽEl+dG2=l+4d,#(d=OEGᡈd=2,ᦑᦪᑡp%rḄ⚗42%=%+E஻-1G஽=2஻-1.E2Gᵫa=2"",(জ=1=2"=2w0gঝᑐM2,ᦑᦪᑡp4ri/22✌⚗424;Ḅ6;ᦪᑡ,1-n1—4"2/\ᡠ/S,,=*aU=2.0=W).ூQRST௃U⚪⌕ὃW65ᦪᑡ{6;ᦪᑡ65ᦪᑡ{6;ᦪᑡḄ⚗4/Y4ᓽ'abὃ⚪.

110(1)ᐜo65ᦪᑡprḄ452d(dKO),᪷⚪ᩩ45ᓽ'(ᑮ⚗4g(2)᪷4=2"”ᔠ6;ᦪᑡḄ¢£'ᑨ¥p%r2/22✌⚗424;Ḅ6;ᦪᑡ¦§'.5.ூᫀ௃(1)«„=-g(2)(஻-l).2"i+"஻+l)+2.nv'2ூ#᪆௃(1)ᵫ=1(q=2,z2஻1-2a-3a......na=2஻(஻eN*),23nᡠ/n>242.3஻3......(஻¨1)4_]=2z,-1(n>2),2ᵫ©ªᖪ(Pa=-(஻>1¬஻£N*),nnz2q=2®ᔠ¯ᡠ/a”=2(eN*).nnஹ…2+2'²(2)o2=---------3ᑣbn=n+n-2nrᡠ/S஻=/?i+³+…+/?஻=(1+2+…+஻)+[2+2-22+3-23+•••+(/?-l)2,,_|+n-2"]o஺=2+2-22+30+…+(n-1)-2n~l+n-2",জᡠ/26=22+2-23+…+(஻-2)-2""'+("-1)-2n+n-2n+l,ঝজ¨ঝ(P-4=2+22+23+…+2"—"21,ᡠ/T(M-1)-2n+l+2.ᡠ/ᓽS=(஻_]),2"+i+஻(஻+l)+2."'"2ூQRST௃U⚪⌕ὃWXµ¶·¸¹º»ὃWXᑖ½Y·¾4;┯¿À·YὃWÁÂÃᓄÁÂab᫏⚪.#(1)ᙠ

111a-2aTq...na=2"E஻GN*GÇ஻¨1È஻(PM2n2“E]ÊË••…E஻-1G41=2-1஻22G,ᵫ©ªᖪ(Pa=-⚪(#.E2GᑭnᵨE1G(Î=஻+”-2",ᑖ½YÏᑭᵨ65ᦪᑡÐ஻⚗Y4¾4;┯¿À·ᑖÑYᓽ'(#.ὃ
ᐵ1.ூᫀ௃cூ#᪆௃o65ᦪᑡp%rḄ452“ᵫÓ-4஺3-4,4+4ᡂ6;ᦪᑡ(=E஺2-஺1GE஺4+4GᓽE2dÔ=d-E2+34G,#(d=2ᡈd=0EÕGᡠ/%=q+4d=l+4x2=9,ᦑ⌱C.ூQRST௃U⚪⌕ὃWX6;⚗Ḅ_ᵨ/65ᦪᑡ⚗4Ḅ_ᵨḼÙὃWXÚ{#ÁÂab)Ạ⚪.ᵫ¨4஺3-44+4ᡂ6;ᦪᑡ(4=2,Ïᵫ65ᦪᑡḄ⚗4ᓽ'#.2.ூᫀ௃Bூ#᪆௃aP=qX6=ÞE4+3dG-=E4+2dGEq+7஺G=5஺+36=0,Êßà4=-5,d=3,S4=—2.ᦑ⌱B.ூQRST௃Uá⚪⌕ὃW6;⚗ḄឋãὃW65ᦪᑡ)UäḄab)Ạ⚪.᪷6;⚗ᑡ¸ᯠæᑭᵨ)UᐗḄ¹ºÇçèÃᓄ24,dḄéᵨᱯ붷⌱ìí⌱⚗.3.ூᫀ௃Bூ#᪆௃ᵫ⚪'(Pড=q3=27nq=3,ᡠ/4=]4"-2=3.3"-2=3"ïᦑa2^=log3n-'=n-l,ᡠ/ôri/4521Ḅ65ᦪᑡᦑ/=8"1
=28,ᦑ3⌱B.

112ூQRST௃U⚪ὃW6;ᦪᑡY65ᦪᑡḄ⚗YÐn⚗Yᐜq=3,(ᑮ6;ᦪᑡḄ⚗i#⚪Ḅᐵ÷ab)Ạ⚪.᪷4=3,4=81'/ᐜ4;4,ᯠæ᪷6;ᦪᑡ⚗4(ᑮ%,ø§(ᑮpar265ᦪᑡÏ᪷65Y4ᓽ'.4.ூᫀ௃Cூ#᪆௃᪷⚪&6Yᦪᑡp%rq=2,4Y25,ᑣ4+4=5,'(4=3,2,஻2᜻ᦪᵫa-\+a=5,nn3,஻2Ꮤᦪ'ᑣ஺8=3.ᦑ⌱CூQRST௃U⚪⌕ὃWXûᭆýèþὃWᳮ
ᓄ
ὃᦪᑡḄᕜឋ᫏⚪.5.ூᫀ௃Cூ᪆௃ᵫ⚪!"#4=4+4=⎃=(ஹ22=1,Z7=a+a=S-S=-x42-lx22=3,ᑣ67ᦪᑡḄ874=3=#=3,ᦑ23442/‘”"44a14=bஹq=3x3=9.?⚪⌱AC⌱⚗.6.ூᫀ௃Bூ᪆௃ᵫ⚪EFGᦪ▣!IJKLᨵ1NᦪOJPLᨵ2NᦪOJELᵫ3NᦪO…J஻Lᨵ“NᦪOᵫ6TᦪᑡḄU஻⚗V8W!"U14LᐳᨵI4X0+14)=]05NᦪO,ᓽJ14LḄᨬ[KNᦪO\ᔠ04,ᡠ`J15LḄJ1Nᦪ2.O\23J15LḄJ5NᦪO\2ᕊᦑ⌱B.ூbcde௃?⚪f⌕ὃᦪ⊤ஹᦪ▣ᦪᑡḄiᵨᐸ᪷mᦪ⊤ஹᦪ▣ᦪᑡḄᦪO᣸ᑡopᔠᳮᑭᵨ6Tஹ67ᦪᑡḄs⚗8WVU஻⚗V8WtuḄᐵwḼyὃᑖ᪆{⚪V{⚪Ḅ
`ᓄ|ᓄ}~Ḅiᵨ.?⚪᪷mEFGᦪ▣ḄᦪOḄ᣸ᑡopᑭᵨ6TᦪᑡḄtV8W!"J14LḄᨬ[KNᦪOt"J15LḄJ5NᦪOḄ.7.ூᫀ௃C

113ூ᪆௃ᓄ,"ᑮs⚗8W\#a“=J£R-6᪷m⌴Wᑡ᝞W:a“-J.+l-4na,——\[n-y/n-l36Z]-V2-1,ᑣᨵ5“=K1ᵫJR>10=஻>99,ᑣ"Ḅᨬ\100.ᦑ⌱C.ூbcde௃?⚪ὃtVẠ⚪.?⚪ᓄᑭᵨtS“"ᓽ!.8.ூᫀ௃—£¤᪆௃•.•ᦪᑡ¦4§u6Tᦪᑡᦪᑡ¨§u67ᦪᑡ...4000+/8=2^009=2ᐔ=2tan♦+"2016=tan2flioo9an—=-ᚖD=tᓽ“009=ᐔ(“6¨012="1009'1+᝛”51+3-ᦑᫀ\-G.9.ூᫀ௃-4ூ᪆௃<4%,2%,%ᡂ6Tᦪᑡ•••4q+%=44,ᓽ4q+q/=44”,":q3=2,24114+஺5_%q+49_1_1a+aq°+qg8/4
l9?⚪¸¹º»#4ூbcde௃?⚪ὃ6TᦪᑡV67ᦪᑡḄ¼ᔠiᵨ{⚪ᐵwu
½t67ᦪᑡḄ?¾Ạ⚪.t᪷mE⚗ᡂ6Tᦪᑡ!᪀⌼ÁÂt"67ᦪᑡḄ87᜛ÄÅÆ=2,ÇᡠtWᓄ\ÈV᜛ḄGWᓄ!"º».10.ூᫀ௃-20

114ூ᪆௃É஻\᜻ᦪ%=/(஻)+/(஻+1)=n2COS(/17l)+(஻+1COS[(஻+1)ᐔ]=(஻+1K஻2=2஻+1.É஻\Ꮤᦪ4=/(஻)+/(஻+1)=n2cos(zm)+(«+1)-cos[("+l)7i]=n2-(n+1)-=-2n-l.J2஻+1,஻\᜻ᦪ•••×=1K(2஻+1),“\Ꮤᦪ.ᡠ`44-CL+•••+%()=3—5+7—9+11—13+•••+39—413=(3-5)+(7-9)+(ll-13)+---+(39-41)=(-2)xl0=-20.ூbcde௃?⚪f⌕ὃᑖØ~ᑖÙtVÁὃ
᫏⚪.t஻ḄÚᑖ᜻ᦪஹᏔᦪt"ÛᑭᵨᑖÙtVtVᓽ!.11.ூᫀ௃(1)×᪆((2)×᪆.[᪆]Va=7,a=3a-2,332a,=3,¦«„+1)u✌⚗\2,87\2Ḅ67ᦪᑡ.(2)ᵫ(1)Ia“+l=2",.a,,=T-l,S=----n=2"+'-n-2,"1-2஻+S“K2a“="+2'"i-஻K2—2(2"—1)=0,.n+S=2a„,ᓽ“a,S“ᡂ6Tᦪᑡ.nnூ~Þdß௃(1)᪷mᩩá᪀⌼67ᦪᑡ#a„+l=2(a„_+l),Û᪷m67ᦪᑡḄâl

115ãäåæç;¤2éᐜ᪷m67ᦪᑡs⚗8Wt"/+1=2",ᓽ"¦4§Ḅs⚗8WÛ᪷mᑖÙtV"S“,ᨬ[ᑨì஻+S“=2%uᔲᡂî.n12.ூᫀ௃¤1é%=2"(¤2éT஻=——.஻+1ூ᪆௃প67ᦪᑡ¦4§ḄU஻⚗V\s“87q>0,S=2a-2®,S=a-22234ঝ.ঝ-জ"/=4-2a2,ᑣ᝞—4—2=0,òq>¤é,ᡠ`g=2,ó\S?=24-2,ᡠ`q+%=24-2,ᡠ`6=2,ᡠ`஺“=2".(2)ᵫ(1)"a=log2a,=log22"=஻1111ᡠ`1J—=1--K=-------7bb/?(«+1)nrt+1Hn+iᡠ`¦77T§ḄU஻⚗V(—1---1------1---1--------=b„b223nn+1n+iூbcde௃ø⚗ùú〉ᵨG᝞\ýKþ¤ᐸ¦4§uᔜ⚗ᙳḄᦪᑡ,lA%+iJcᦪḄᦪᑡ.⚗Ḅᨵ⚗Ḅ⚗!ᨵ"#◞"⚗Ḅ]1⚗᝞ᡈ-------.(஻+1)(஻+3)~஻(/+2)13.ூ2ᫀ௃(1)a,,=2஻+l(஻eN)ফ7;,=^^-4,,+|-1.ூ?᪆௃পBC(DS”)(஻GN*)Eᐭ஻G)=H2+2%IS.=/+2஻,஻eN*ᑣN=1OP=3,

116"22Oa=S-S_=«2+2n-[(n-l)2+2(n-l)]=2n+l,nnlli^_`஻=1abcaa=2஻+1(஻wN*),ᡠfa“=2஻+l(2)ᵫ(1)I஺“=2஻+l,ᡠf"=2"j%=(2஻+1)4”,ᑣ7;=3x4i+5x42+7x43+9x44+—+(2஻+l)4",জ47;,=3x42+5x43+7x44+---+(2n-l)4,,+(2n+l)4,,+1,ঝ®-®W-37;,=3x41+2x42+2x43+2x44+---+2x4,,-(2«+l)4n+12X4(1-4")=4+——------(2n+l)4n+l1-46»+1„_4=4+I"99ூxyCz௃{⚪}⌕ὃᦪᑡ⚗Ḅfᦪᑡw⚗Ḅ.ᦪᑡ⚗ᵨḄᨵjஹஹஹ.ᦪᑡ஻⚗ᵨḄᨵj┯ஹ⚗ஹஹᑖ.⚪.2஻+314.ூ2ᫀ௃(1)a=2n-\;(2)T=6...-.nூ?᪆௃(1)ᦪᑡḄ✌⚗4,஺ᵫ%3,S4ᡂᦪᑡS+S=Sᓽ2a,-d=0,জ345ᵫ஺5=3஺2+2q—2Ij4q-d-2=0,ঝὶ¦জঝ?Iq=l,d=2.§¨=2஻-l(neN*).(2)©c“=%=—,ᑣᓅ=஺+஺2+—Fc“b“U;I/iA2(iVtAT;,=l-l+3--+5--+…+(2஻-1>-ঞ2\,2J

117iiCiA2CiA3V-7;,=l--+3--+5--+.--+®2n-l--ট22\2J12,ঞ-©Io2/1+3²3--ᡠf1=6-•ூxyCz௃{⚪}⌕ὃᦪᑡḄ✌⚗Ḅ´᫏⚪?⚪O⌕¶·¸⚪¹ºᦪᑡḄឋ¼ஹ┯Ḅᔠᳮ¿ᵨ.15.ூ2ᫀ௃®14=1,4=2஻-1;®21,2.ூ?᪆௃®1ᵫ4=2À-1,IÁ஻=1O4=1;Á/.2Oa“=S”—S“T,EᐭÂᨵ2£=5.-ᓅ+1,ᓽÄ>0,ᦑÆ=i-E®ÈᡈÉ=Ê-1ᓽ£-&²=1®”..2,ᵫIÌ´f1✌⚗1Ḅᦪᑡy[S^,=n,ᑣa”=2஻-1.®2ᵫ⚪Id=4+2""=2஻"1+221,,2஻+1_D,2"+1_r\ᡠfᦪᑡÍ“Ḅ஻⚗7;=31+2”-1+Î/="2+²Ï².§7;<1+6.2"-6,ᡠf®2"Ñ—9-2"+8<0,ᓽ1<2"<8,ᡠf0<஻<3.ᡠfÓ᦮ᦪ஻ᡂḄÕᔠ1,2.ூxyCz௃{⚪}⌕ὃᦪᑡḄ⚗ὃஹÖᦪᑡὃᦪᑡᑖ,

118ºᙠὃØÙÚÛÜÝḄᳮ?Þßàáᑖ᪆âᳮãä.?O®1ᵫᦪᑡ⌴âæ✌⚗ç"èIᑮ£´f1✌⚗1ḄᦪᑡæᦪᑡḄ⚗IS“Eᐭ=2#;-1Iᦪᑡ4Ḅ⚗;®2ᐜæ1=஻2+²1ìíEᐭ?ᓽI?.îïὃ1.ூ2ᫀ௃Bூ?᪆௃©஻ä=ñ-ò"1,ᑣ/'®x=l-J©/'®ä=0,IX=1,ᡠfÁX>1O,/r®x>0,Á00,ᑣ4+஽2+/+4>4+/+%>ln®4+%+/ᔠ⚪º;õÖ᜛4-1,ᑣ4+4+4+஺4=4®1+4®1+/«0,øIn®q+4+4=In14®1+4+42ù>1ú>0,ᓽ4+02+/+%W0aq2=a,alnx+l,e'>x+l,ev>x2+l&x>0(.2.ூ*ᫀ௃&1(%=2஻—122&2(3஻=5ᡈὅ஻=68S“ᑮᨬ=30.ூ?᪆௃&1(AB%CḄEFG஺.IGJ=-10,ᡠMa,=—10+d,%=—10+2d,%=—10+3d.IG஺2+1஺,%+8,%+6ᡂRᦪᑡᡠM&4+8U=&V+10(&4+6(.ᡠM&—2+2d>=d&—4+3dD.?Wd=2.

119ᡠMa“=4+d=2஻-12.(2)ᵫ(1)[a=2஻-12.nᡠM3஻278>023஻<68a<0.nᡠMS”Ḅᨬ=G$6=-30.ூ`abc௃FᦪᑡdefḄg?FᦪᑡhḄidej⚪?lmij⚪ḄᐵoᙠqrstuFᦪᑡḄᨵᐵEvwᮣyzᵨ.3.ூ*ᫀ௃&1(%=3஻2=3"2ফ&2஻T3"+2+6/+92ூ?᪆௃&1(AFᦪᑡB%CḄEFGd,RᦪᑡB2CḄERG/=3+2d,d—3,⚪W?W&=15+4d,q=3,ᦑ4=3+3(஻-1)=3஻2=3x3"T=3”.ᡠMB4CḄ⚗EG஺“=3஻CḄ⚗EG2=3".(2)4C]+a2c2+--a2nC2n=(4+a3+஺5H-----)+(%஻1+஺44+஺63------------hC(2A1)(=nx3+-(33~])-x6+(6x352x32+18x33+…+6஻x3")=3n2+6(lx3l+2x32+---+/2x3n).iciT2,=lx3l+2x32+---+nx3",®ᑣ372=1x32+2x3^+…+஻x3"i,ঝঝ-জW21=33233...3"+"3'=3°-3)+஻x3"+i=ᔙ*+3“1-32ᵫ2°25°2°(2n-l)3,,+l+3ᡠMa©+Q2c2-----ha2nC2n=3஻+6T=3஻~+3X------------------fJ

120(2«-l)3,,+2+6n2+9/ஹ.\=------------2-----------(/?eNT)•ூ`abc௃e=⚪¡⌕ὃ¤FᦪᑡஹRᦪᑡḄ⚗E¥¦஻⚗§EdẠ[©ὃ¤ᦪᑡg§Ḅde§zªg?w«qh᫏⚪.4.ூ*ᫀ௃(1)q=22(2)d=15—(4஻+3>(g)"f.ூ?᪆௃e⚪¡⌕ὃ¤FᦪᑡஹRᦪᑡஹᦪᑡg§dẠ[©®8ὃ¤zªg?w§¯ᔠ±ᵨw.(1)ᵫ஺4+2%஺5ḄFh⚗W4+%=2%+4,ᡠM/+%+%=3a4+4=28,?Wq=8.ᵫ4+q=20W8(q+,)=20,qIGq>l,ᡠMq=2.2Ac,=Cb-b„Da,ᦪᑡBc.
¦"⚗§GS,,.n+in5],஻=1,ᵫ?Wq,=4/1-1.5„-5„_,n>2.1ᵫ&1²[a“=2"T,ᡠM4+1=&4஻-1&2(”‘ᦑ421=&4஻-5&2("2஻´2,µ4=&¶஻-(+C%_*D+•••+&/ᡭ(+&¸¹(=4஻—5•d7+&4஻9(.&A"ஹ+…+7,+3.222A72=3+7g+U[g2+…+&4஻_5>&2('-2,“N2,1111_1—7^=3•—+7•ߟ9H----FC4n—9•ߟn/,7~4-C4n-5-ߟ/72222211111,00ᡠM72=3+4+4&(2++4&(஻2&4஻-5•&1,22222

1211,I½72=14-&4"+3¾&("2,஻22,2¿À=1,ᡠM2=15-&4஻+3ுூ`abc௃ᵨ┯ÄÅÆg§±ÇḄj⚪&1(⌕ᗐq©É⚪iÊᱯÉRᦪᑡERGÌᦪḄÍÎ;&2(ᙠᑏÑ“SJÓ"qSJḄ⊤Õ8±ᱯÉÇÖד┯⚗
Ø”MÙÚÛÜÝᑏÑ“S"-qS”Ḅ⊤Õ2&3(ᙠ±ᵨ┯ÄÅÆg§8ÞRᦪᑡḄnERGᦪ±ᑖERq1§q1×àÍág?.5.ூ*ᫀ௃&1(S“J'+”,T=2"-\;&2(4.n2ூ?᪆௃&1(ARᦪᑡB2CḄERGq,ᵫ4=1,ᔊ+2,²W4?q—2=0.IG᜛¾0,²W4=2,ᦑ¶=2";1-2"ᡠMT2=L^=2"—1.,1-2AFᦪᑡB஺“CḄEFG".ᵫd=0,+஺5²W4+31=4.ᵫ¹=4+2%²W3q+13d=16,æJ=l,d=l,ᦑ4=஻,ᡠMs.=᝞22&2(ᵫ&1(,ᨵè2+&+…+7,=&2ஹ23+…+2"(-஻=^^^஻=2"+|-஻2.1—2ᵫ5,+&72+&+-+72(=4+42²W^^12+2ᵨ஻-2=஻+2ᔣ᦮ᳮW஻23஻4=0,?W஻=1&í(ᡈ஻=4.ᡠM஻ḄG4.ூ`abc௃e=⚪¡⌕ὃ¤FᦪᑡஹRᦪᑡḄ⚗E¥¦n⚗§EdẠ[©.ὃ¤ᦪᑡg§Ḅde§zªg?w.6.ூ*ᫀ௃&1(q=&2("2&2(S=--+&-l(n—,îïð?᪆.“33ூ?᪆௃&1(AB4,CḄERGñ%&1+ò7(=2,ᵫ⚪A²Wீ2?W஺=-2,4=-2.q&1+q+q(=-6.

122ᦑ—“CḄ⚗EGô=(-2)".(2)ᵫ(1)²Ws“=%Rq=—,+(—1)"õ.\-q33A)஻+3_,஻+20,஻+lᵫqs,+2+5„=--+(-ir—1—=4--+(-ir—]=2s.+1ᦑS.+IS“s“+2ᡂFᦪᑡ•ூ`abc௃FஹRᦪᑡḄឋú×àᦪᑡdeûüḄýþÿ
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$3=21.-q=4"
S=-6.3

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ᵫজHd=8,ᑣS3=21.-q=4"
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