2021-2022学年辽阳市毕业升学考试模拟卷数学卷含解析及点睛

《2021-2022学年辽阳市毕业升学考试模拟卷数学卷含解析及点睛》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。

2021-2022ὃᦪᔁ⚗1.ᔁὃḄஹὃஹὃ!ᑏᙠ⚪ᔁ⚪ᓱ&஺ᵨ2B)*ᔁ+,B!-ᙠ⚪ᓱ./0&஺ᩩ2ṹ45ᙠ⚪ᓱ6&7"ᩩ2ṹ45ᜐ"o2.<⌱>⚪?⌱@AB⚪ᫀDᵨ2B)*E⚪ᓱ&F/⚪G⌱⚗ḄᫀHIJ-KL᝞◤ᦋPᵨQRSTUDV⌱-ᐸXᫀ஺ᫀYZᙠ⚪ᔁ&஺3.[⌱>⚪\ᵨK⁐^_Ḅ`*ᡈb^*<ᫀ\ᑏᙠ⚪ᓱᔜ⚪Gᢣefgᑁ./0&L᝞◤ᦋPᐜᑜᣵlᩭḄᫀᯠDVᑏ&oᫀLYpᵨ)*-ᦋq஺Yᢥs&⌕u⚪~ᜧ⚪ᐳ12B⚪AB⚪4ᑖᐳ48ᑖ.ᙠAB⚪@Ḅ⌱⚗ᨵ⚗ᔠ⚪G⌕uḄ.1.ᙊ┵Ḅ3cmḄ72ᙊ┵Ḅ☢A.4.5ncm2B.3cm2C.47rcm2D.37rcm22.¡ᑡ᪗¤¥F¦2§¨F¦2ḄAB.@C.1.D.ÏÐ3.ᐵª«ḄY¬-1Ḅ®᝞ᡠ°ᑣ஺Ḅ²³-7-101A.0B.-3C.-2D.-14.᝞ᙠRSA8CZACB=90°,CD43&Ḅ´,AC=8,BC=6,ᑣNACOḄ¹ᑗ³ᨴN-------------4353A.-B.-C.D.-35345.¡ᑡ¬¹ºḄA.a+b2=a2+b2B.3n+3n+3n=3n+1C.a3+aJ=a6D.ab2=ab26.ᙠ¡ᑡ»¼½ᦪᐸ¾ḄF¦¥x=-2ḄA.y=x+2-B.y-2x2-2C.y--2x2-2D.y=2x—2'7.¿ÀÁᘤ᪗Ã240ᐗÅs8ᢚÇÈ├ÊËÌÍᑭ20%,¿ÀÁᘤḄÒÃA.152ᐗB.156ᐗC.160ᐗD.190ᐗ

18.᝞ᙠAA8CNACB=90,AC=6,3C=8,JP,QᑖÓᙠAB,3c&AQ_LCPª஺Ô=±ᑣAACPBP5Ḅ☢9.᝞ᙠ×ABCACḄᚖÙÚᑖ´ᑖÓACஹBCªE,DÛJEC=4,ABCḄᕜ23,ᑣ×ABDḄᕜ
10.¡ᑡᔜ¬ÀÁ¹ºḄA.2«+2=3«2B.Ý=ᡝC.c2-c3=c5D./«-«
-=m2-n211.᝞ᙠ2ABCD᝞ßNADC=NBAC,¡ᑡᩩàYZᑨe×ADCABAC.âḄA.ZDAC=ZABCB.ACNBCDḄÚᑖ´C.AC2=BC»CDD.—=——ABAC12.¡ᑡÁ¬{ߪa$Ḅ
A.a2+a3B.a2»a3C.a5-i-aD.a2
3»ஹ!ã⚪~ᜧ⚪ᐳ6B⚪AB⚪4ᑖᐳ24ᑖ.13.½ᦪy=äåxḄ²³çx-214.Åèᦪaஹbஹcᙠᦪ¥&F/JḄ0᝞ᑣᓄê2|a+c|+—᝞ì+஺2+3|a-b|=.Ill1îcaCib15.᝞Ù´ï=ð4஺஺0ªJA,B,஺஺ñ1¥òó¥V¥¹ó¥ᑖÓªJQ,E,AD,BõḄ

2ö´.ªJC,ᑣCB:CDḄ³16.÷5ø&☢ᑖÓᑏḼ“û”“ý”“ᔣ”“ÿ”“ᩭ”5Ḅᓱᱏ(ᜧஹᐰ)ᑣᓱᱏ☢ាᑏḼ“#”Ḅᭆ᳛&.17.(ᦪy=1*3+,-xḄ.0&.X—118.211234ᢈ6789:;ᵨ.34&=>Ḅ>-ᓫ@134=0.0()()()0()0()14ᑣ1234ᵨABCᦪD⊤FG4.HஹIJ⚪L(Mᜧ⚪ᐳ9⚪ᐳ78ᑖIJ;ᑏPᦻRSஹTSUVᡈXYZ[.19.(6ᑖ)▅]^ᑡᩞᧇLᩞᧇLbᙠ2011d9ᨴ25fᓅhᦑjkᱥ▾nopqrst⚜vwἠ,2011dᐰdstvἠyᓰ1.68%.2012d{2014dᐰdstvἠᓰ|}ᙠ2%~.2015dᐰdstvἠᓰ17.33%,2016dᐰdstvἠᓰ|={41.14%.2017d8ᨴstvἠᓰ|77%.2017d1()ᨴ2f✌ᐰsvἠ.stἠᵨ“ឋᓄ”ḄGᨵḄ^ᓫ.ᐰstvἠ¡¢£ᙠᓅhᦑjkᱥ▾Ḅ¤¥ᓄ¦ᳮ^¨©ª+«ᙢ᣸+¯Ḅ°V±ᑜ³´ªµḄᦻᓄ¶·¸¹º».ᩞᧇ¼L©^&½B᪷¿sÀÁḄᦪ¿ᑴÃḄd>ÄÄÅkᱥ✂¹ᦪÇd=᳛ȱ⊤.d>20132014201520162017¹ᦪ(77778)45000()630000290000550000060000d=᳛(É)38.72.4-4.53.66.8

3p・*AiiM-SMA・ÄÄÅkᱥ✂N3¹ἠ1M，aBM.4Q-mi**ËgÌ31/ÍÎÏÐÌᑮ᝞^ḄᑣÓÔL2018d3ᨴ8fÄÄÅkᱥ✂ÕÖk×ᦻØÙÚÛÜwἠᢝÞßT⚜àᓽ¨¹.Äkâᙠãäå᠗ÄÅkᱥ✂✂çÃᕒéêḄ&L“ëᯠᨵᦑjíîÛÜïἠḄð»ᙠñòóôÄkᩭR⚗çÃöᨵÓḄᢧᡊ.¹ᦑj◤⌕sûüwἠ,Î⍳ÿ⚜
Ḅ᪵Ḅ.ᨵ
ᩭᢴᓰᡠᐸ᪵!"᝞$%&'᩽)*ᢈ,-./ᓣ123456789:;Ḅ<=>?.᪷ABCDEFGᑡI⚪K
1⊡ᐰGN8OPQR
2ST⚜U2018VWXᱥ✂Ḅ[6\ᦪ^_`TḄ⚜Uᳮᵫ.20.
6ᑖPdK2sin30°-ᐔ-0°+|6-1|+
21.
6ᑖghijklᑏnoḄpqrstnuḄvwx᪥z{✌}“noᑏᜧ”jk⌱ᐭFᑏ1008noᑏ8no1ᑖFjkᡂgxᑖ504x<100,&ᐸᢥᑖᦪᑖgᑴG:᦮⊤KᡂXᑖ⚣ᦪ\ᦪ⚣᳛50Mx<6020.04

4¤60QR(4)´Fᡂµ¶80ᑖg·¸ᑣᜧḄ·¸᳛g22.(8ᑖ)»ABCWAB=AC,DgBCḄW¼Dg⚔¼¾NMDN=NB.DM¿ACÀ¶¼E,Á¬ÂÃÄᑏQWᡠᨵÅAADE±ÆḄ¥ÇÈ.᝞Q(2),&NMDNɼDÊ⌮┐>ᔣÎÏDM,DNᑖ¿ÄAC,AB¶E,F¼(¼EżAÑᔠ)Á¬ÂÃÄᑏQWᡠᨵḄ±Æ¥ÇÈ^Ó`TḄÔÕ.ᙠQ(2)W´AB=AC=10,BC=12,×»DEFḄ☢'ضAABCḄ☢'Ḅ1ÙÄ4EFḄÚ.

523.8ᑖ᝞-*./012345.6Ḅ89ᙳ;1,<=ABḄ>3?@ᙳᙠ45.6Ḅ⚔@C.ᙠ-1DEF<=AB;G8ḄH6ABCDIJ5.6*K@CL@Dᙳᙠ45.6Ḅ⚔@CMᙠ-1DEF<=AB;GῪ,O89;2PḄQῪRS6ABE,@Eᙠ45.6Ḅ⚔@C*TUCE,VWUᑏE<=CEḄ9.424.10ᑖYIQZl-
2-x
>§x-2,[\]ḄY^⊤`ᙠᦪbC._»<-7Jft-5-4-3-2-I~0~I~2~3~4~5~6~7~K25.10ᑖ᝞-*ᙠcABC1*AB>AC,@Dᙠ8ACC.1
dNADE,eNADE=NACB,DEfABg@Ehid-*jᶇd-lm*Iᑏdn2
oBC=5,@DJACḄ1@*pDEḄ9.YYI26.12ᑖ᝞-*H6Ḅ>8A஺ஹ45Ḅ9ᑖs;3ஹ8,EJ஺஺Ḅ1@*tuvwᦪy=—Ḅ-xyxz@E,AB
F.o@3ᙶ᪗;-6,0
,p஻?Ḅ-xyzAஹE>@ḄGwᦪḄ⊤ZMoAF-AE=2,ptuvwᦪḄ⊤Z.27.12ᑖᙠ2018ᐵḄ“ᗐᐵ•ᨨR”Ḅὅᑡ1*ὅ^ᑖ*ᑜ¢£ᵬஹ¥>¦§ᒹo©3〈«¬®¯Ḅ°±*²³23ᵬ¦§ᒹḄ´/u23¥¦§ᒹḄ´/µ10ᐗ*ᵨ350ᐗ¢£ᵬ¦§ᒹḄ3ᦪា¹ºᵨ300ᐗ¢£¥¦§ᒹḄ3ᦪ»¼*pᵬஹ¥>¦§ᒹ23Ḅ´/ᔜJ¾¿ᐗÀ

6[ὃ¨ᫀGஹ⌱Â⚪Äᜧ⚪ᐳ1234⚪*24⚪4ᑖ*ᐳ48ᑖ.ᙠ24⚪«EḄÇ3⌱⚗1*ÉᨵG⚗JËᔠ⚪Í⌕pḄ.1ஹAூ᪆௃᪷в³ÑEᙊ┵ḄO☢ÕÖ×<9*ØÙᑭᵨᙊ┵ḄÛ☢Ü=O☢ᕜ9x×<9+2pEᓽß.ூáY௃•••ᙊ┵Ḅbã☢JG389;3cmḄQ8RS6*...O☢ÕÖ=1.5cm,O☢ᕜ9=3?rcm,:,ᙊ┵ḄÛ☢Ü=/3nx3=4.5ncm2,ᦑ⌱A.ூ@æ௃ç⚪è⌕ὃêᙊ┵Ḅᨵᐵë*ᐵìJᑭᵨᙊ┵ḄÛ☢Ü=O☢ᕜ9x×<9+2ÑE.2ஹDூ᪆௃í⚪ᑖ᪆ï᪷Ðbðñ-6L1òðñ-6Ḅᭆô*ß³ïAõIJbðñ-6*öIJ1òðñ-6*ᦑI5÷MBIJbðñ-6*øJ1òðñ-6*ᦑI5÷MCJbðñ-6*øIJ1òðñ-6*ᦑI5÷MDᓽJbðñ-6*öJ1òðñ-6*ᦑ5÷.ᦑ⌱D.ὃ@ïbðñ-6L1òðñ-6ùs3ஹDூ᪆௃✌ᐜ᪷ÐIQZḄឋý*YEþ¯ÿᵫᦪx<-Lᡠ1=-1,ᓽ22ூ௃

72x—1,x<—,2ᵫᦪீ1,ᡠ==T2a=—1ᦑ⌱D.ூ௃⚪⌕ὃ"Ḅ$%ᙠᦪ'⊤)Ḅ*ᙠ⊤)*+“N”“W”⌕ᵨ12ᙊ⊤)“V”“>”⌕ᵨ62ᙊ⊤).4ஹDூ᪆௃᪷;<=>=?@A'ḄBCD@AḄECD=AD,F᪷;AG=ḄឋINA=NACD,ᯠK᪷;LᑗNᦪḄOPᑡRZAḄLᑗSᓽTtanZACDḄS.ூU௃CDVABA'ḄBC.•.CD=AD,.*.ZA=ZACD,VZACB=90°,BC=6,AC=8,3/.tanZACDḄS.4ᦑ⌱D.ூ௃⚪ὃ"┦=>=NᦪḄOP<=>=?@A'ḄBCD@AḄEḄឋIAG=ḄឋIRNA=ZACDV⚪ḄᐵY.5ஹBூ᪆௃(1)᪷;Zᐰ\]^_`a(2)᪷;ᔠcde⚗_`a(3)᪷;ᔠcde⚗_`a

8(4)᪷;gḄh]_`a.ூU௃Aஹ(a+b)2=a2+2ab+b2,ᦑi⌱⚗┯k;Bஹ3n+3n+3n=3n+1,LmCஹa3+a3=2a3,ᦑi⌱⚗┯kD>(ab)2=a2b,ᦑi⌱⚗┯kᦑ⌱B.ூ௃⚪ὃ"᦮ᦪᢣᦪg%᦮Ḅpq⚪ᐵYVrsᔜuឋI.6ஹAூ᪆௃y=(x+2)2ḄGvTx=-2,ALmy=2x2-2ḄGvTx=0,B┯ky=-2x2-2ḄGvTx=0,C┯ky=2(x-2)2ḄGvTx=2,D┯k.ᦑ⌱A.1.7,Cூ᪆௃ூᑖ᪆௃x_yTxᐗ{⚪|240x0.8-x=20x%,]}.ூU௃x_yTxᐗ{⚪|240x0.8-x=20x%x=160ᡠ_yT160ᐗ.ᦑ⌱Cூ௃⚪ὃ᪶ᑡ]}ᵨ⚪.⚪ᐵYᐵ.8ஹCூ᪆௃ᐜᑭᵨ>=NᦪRBE=4m,d(1)Ḅ]$ᑨN1=N3,_ACQs/\CEP,RPE,ᨬKᵨ☢ḄᓽூU௃

9..CQ_i•9BP5ACQ=4m,BP=5m,33ᙠRtAABCBsinB=~,tanB=—,54᝞2,PPE_LBCDE,*»3PEᙠRtABPEBPE=BP*sinB=5mx—=3m,tanB=-----BE3m_3~BE~49BE=4m,CE=BC-BE=8-4m,d
1
Ḅ]$Z1=Z3,.*ZACQ=ZCEP,••ACQ^ACEP,.CQAC=~PE~~CE'.4m6,•—=-------93m8—4m7,•m=—,821,.PE=3m=—,811112127*.SACP=SAACB-SAPCB=-BCxAC--BCxPE=-BC(AC-PE)=-x8x(6--)=——ᦑ⌱C.A222282ூ௃⚪V?ᔠ⚪⌕ὃ">=?ḄᑨO%ឋI>=?Ḅ☢Ḅq]$,ᑨAACQ^ACEPV⚪ḄᐵY.9ஹBூ᪆௃VDEᚖ<\ᑖAC,AD=CD,AC=2EC=8,

10VCAABC=AC+BC+AB=23,.,.AB+BC=23-8=15,:.CABD=AB+AD+BD=AB+DC+BD=AB+BC=15.Aᦑ⌱B.10ஹCூ᪆௃EKA.2aÅ2ß⚗ᔠ^ᦑ⌱⚗┯âRB.²g-ãä=æᦑ⌱⚗┯âRC.RD.²gm—=nr+n2-2mn,ᦑ⌱⚗┯â.ᦑ⌱C.ூ¼è௃⚪ὃêëḄì>Å'Ḅì>RíᦪîḄìï.11ஹCூ᪆௃ÔᔠQÈ⌲⚗ñᑖ᪆ᓽ.ூ௃ᙠAADC-»BACWNADC=NBAC,᝞ôAADCs/iBAC,◤ö÷ḄᩩùᨵKজNDAC=NABCᡈACNBCDḄûᑖÄ;ADDCঝ=—,ABACᦑ⌱C.ூ¼è௃⚪ὃê±Æ¥ÇÈḄᩩùÿ
Ḅᑨ⚪Ḅᐵ.12ஹBூ᪆௃⚪᪆AஹIᔠᡠA⌱⚗┯"#Bஹ$%=a$,ᡠB⌱⚗&'#C,$%=atᡠC⌱⚗┯"#Dஹ$%=a“ᡠD⌱⚗┯".ᦑ⌱B.

11*ஹ+,⚪(.ᜧ⚪ᐳ612⚪32⚪4ᑖᐳ24ᑖ.)13ஹx#lூ᪆௃=—^ᨵ:;x—2Ax-l^O,ᦑ<ᫀ1.14ஹ-5a+4b-3c.ூ᪆௃>?ᑭᵨᦪCDᔠ*E᪷%ஹGHIḄឋKᓄMNO<ᫀ.ூ௃ᵫᦪCQNa+c<0,b-c>0,a-b<0,ᦑ$%=-2(a+c)+b-c-3(a-b)=-2a-2c+b-c-3a+3b=-5a+4b-3c.ᦑ<ᫀR-5a+4b-3c.ூ௃S⚪T⌕ὃWX*E᪷%YGHIḄឋK&'ᓄM⚪ᐵ.15ஹூ᪆௃Z?30,᪷[N£8=90°QNNAOD+N50E=9O஺]᪷[ᙊḄ_`aQNbOADஹOBEcaῪᵫḄᑁfQNNC=45஺ᑣᨵCD8aῪ>CB:CD=gᓽQii.ூ௃᝞klZ?BD

12V48=90஺.ZAOD+NBOE=90°,'OB=OE,OA=OD,.ZOAD=NODA,Z.OBE=Z.OEB,...ZOAD+NOBE=1(360°-90°)=135°,*ZACS=45°,VAB>`:.ZADB=NCDB=90஺,:.SBaῪ>•••CB:CD=O.ூno௃.⚪ὃWᙊḄឋKf>ḄឋKq᪷[ᙊឋKNOCD8aῪ>⚪Ḅᐵ.16ஹ5ூ᪆௃᪷[ᭆ᳛Ḅt%uvwxᓽQ.ூy௃z5{|☢ᑖ~ᑏḼ“”“”“ᔣ”“”“ᩭ”51Ḅᓱᱏ{ᑣ{ᓱᱏ|☢ាᑏḼ“”Ḅᭆ᳛#ᦑ<ᫀRூno௃ὃWᭆ᳛Ḅwx'ᭆ᳛Ḅ:;⚪Ḅᐵᭆ᳛aᡠiᦪᦪḄ.317ஹx>----]xrl.2ூ᪆௃᪷[ᑖ%ᨵ:;Ḅᩩஹ*E᪷%ᨵ:;Ḅᩩᑡ%wx.ூy௃ᵫ⚪:N2x+3>0,x-1f,

133NxN--]x#l,23ᦑ<ᫀRXஹ]1.2ூno௃.⚪ὃWḄᦪ¡¢£ḄI¥জ§⊤©%Ḅᑖª«ᨵ¡¢£¬¡¢£ᐰ®¯ᦪ.ঝ§⊤©%Ḅᑖª«ᨵ¡¢£¬¡¢£I⌕±ᑖªR².ঞ§ᦪḄ⊤©%ᏔE᪷%¬¡¢£ḄI¥µ¶±·¸ᦪ2².18ஹ1.2x10-'.ூ᪆௃GHI21Ḅ&ᦪ¹Qᑭᵨº»¼ᦪ⊤l½%RaxlO-n,¾ᜧᦪḄº»¼ᦪ¿Ḅᐸᡠ±ᵨḄÁᢣᦪÃᢣᦪᵫ$ᦪÄÅÆÇ1R²ḄᦪÈ☢Ḅ0Ḅ1ᦪᡠÉ.ூ௃12ÊË=12x0.000000001Ë=1.2x1஺1Ë.ᦑ<ᫀR1.2x101.ூno௃.⚪ὃWᵨº»¼ᦪ⊤l¾2Ḅᦪ½%Raxio-n,ᐸiw|a|V10,nRᵫ$ᦪÄÅÆÇ1R²ḄᦪÈ☢Ḅ0Ḅ1ᦪᡠÉ.ஹ<⚪Ì.ᜧ⚪ᐳ912⚪ᐳ78ᑖ<ÍᑏOᦻÏஹÐÑÒᡈÔxÕÖ.19ஹ1
×᪆#
2
<ᫀØ⚜ÚᳮᵫᔠᳮÜᥛ⚜Úᦪ[ᓽQூ᪆௃ᑖ᪆
1
᪷[2015Þßàáἠᓰ17.33%,2017Þ8ᨴ¯åßàáἠᓰ77%,2017Þ10ᨴ2✌E¯åᐰçßàáἠᓽQ⊡ᐰk1,᪷[2016Þéêêëìᱥ✂ïðñᦪYÞòó᳛ᓽQ⊡ᐰk2;2
᪷[ôõÞöᙳ3Þòó385000ñEᓽQ⚜Ú2018Þêêëìᱥ✂Ḅïðñᦪ.2
ôõÞöᙳ3Þòó385000ñE⚜Ú2018Þêêëìᱥ✂ḄïðñᦪR8445000ñE.Ì<ᫀØ⚜ÚᳮᵫᔠᳮÜᥛ⚜Úᦪ[ᓽQ.ø

14no.⚪ὃWXùw⊤ஹᢚûùwkḄÍᵨᐵ&'zùw⊤Nᑮ&'Ḅýþᢚûùwk⊤lḄÿᱥḄᓄ.20ஹ1+^/3ூ᪆௃ᑖ᪆ᑭᵨᱯḄᦪᢣᦪḄឋᢣᦪḄឋᑖᓄ!"#$ᫀ.&'()=2x^-1+GJ+2=1+6*+,⚪.⌕ὃ123ᦪ45678ᓄ!ᔜᦪ:'⚪ᐵ<.21ஹ(1)50(2)a=16,b=0.28(3)$ᫀ='᪆>(4)48%.ூ᪆௃?⚪ᑖ᪆(1)᪷ABCDḄEᦪFᑖG"#᪵IJK>(2)᪷A᪵IJK⚣ᦪஹ⚣᳛NOḄᐵP"#abḄ6(3)᪷AaḄQRS⊡ᐰ>(4)᪷ARVW"XYḄEZB[B\DḄE6Q]DḄ⚣ᦪ^_`100%"#$ᫀ.?⚪'᪆(1)2+0.04=50(2)50x0.32=1614+50=0.28(4)(0.32+0.16)x100%=48%ὃ*⚣ᦪᑖabR22ஹ(1)AABD,AACD,ADCE(2)ABDF^ACED^ADEF,cd='᪆>(3)4.ூ᪆௃(1)᪷AeῪSḄឋ^gSḄᑨi"#jADEsZkABDsaACDsaDCE,lᳮW":ADE^AACD.AADE^ADCE.

15(2)ᑭᵨop✌ᐜs#NBFD=NCDE,ᓽW"#ABDFs/iCED,uᑭᵨ^gSḄឋ"#C=—,yzCEED"#jBDF-^ACED^ADEF.(3)ᑭᵨjDEFḄ☢|e}jABCḄ☢|Ḅ,6s#DHḄ~6yzᑭᵨSADEFḄs#EFᓽW4ூ&'௃'(1)R(1)AADE^gḄᨵjABD,ACD,ADCE.(2)ABDF^ACED^ADEF,cd᝞VZB+ZBDF+ZBFD=30°,ZEDF+ZBDF+ZCDE=30°,XVZEDF=ZB,.,.ZBFD=ZCDE.VAB=AC,.,.ZB=ZC..,•BDF^ACED..BDDF■"CE-ED"VBD=CD,.CDDFCDCEnnCEEDDFEDXVZC=ZEDF,/.CED^ADEF.:.ABDF^ACED^ADEF.(3)AD,D*DGJ_EF,DH±BF,ᚖᑖZG,H.AADIBC,BD=-BC=1.2ᙠRtAABD6AD2=AB2-BD2,BPAD2=102-3,.*.AD=2.11:.SAABC=—*BC*AD=—x3x2=42,22

16SADEF=-SAABC=-x42=3.44F1IV-«AD«BD=-ABDH,222ADBD8x624DH=------------=-------=——.AB105,.,
BDF-^ADEF,.NDFB=NEFD.VDH±BF,DGJLEF,...NDHF=NDGF.DF=DF,.,•
DHF^ADGF(AAS).24.\DH=DG=—.51124.SAI>EE=-EFDG=-EF•=3,225.EF=4.ூ௃⚪ὃ"%ᨵᐵḄᔠឋ⚪ᵨᑮḄᨵ>=?ḄᑨO%ឋIஹῪ>=?ḄឋI¢£¤OᳮḄpᵨᮣ§pᵨ>=?ḄᑨOOᳮ%ឋIOᳮV⚪ḄᐵYa+⌕¨©ª«?ஹ⌱¬ᔠ〉ḄᑨO]$®|ᦪ?ᔠ¯°Ḅpᵨ.23ஹ±᪆CE=4.ூ᪆௃ᑖ᪆ᑭᵨᦪ?ᔠḄ¯°²³⚪ᓽ.U᝞ᡠ)´?ABCD%ABEᓽTᡠRCE=4.⚪ὃ"-ᵨ¶xஹῪ>=?ḄឋIஹ£¤Oᳮஹ´?ḄᑨO%ឋI⚪ḄᐵYV·¸ᑭᵨ¯°ᔠḄ¯°²³⚪.24ஹxV5ᦪ±᪆ூ᪆௃ூᑖ᪆௃¹(x-2)º»¼᦮½ᐜ¾⚗ᯠKFᢥᐗÀḄÁÂÃ_`RR*Kᙠᦪ'⊤

17)ᓽ.ூU௃¾⚗|(x-2)=?BÍCḄឋIR.ூ௃(1)᝞NADETᡠ(2)VZADE=ZACB,ADE/ZBC,•.•DVACḄBADE4ABCḄBÍC15.\DE=-BC=-.224426ஹ(1)Ï=—12,y--x(2)y=—.3xூ᪆௃ᑖ᪆(1)ᵫÊR4ஹEḄᙶ᪗ᓽ,"ḄS%ÀNᦪNᦪḄ᪆;

18(2)ᵫAD=3,DE=4,ᑮAE=5,ᵫAF—AE=2,ᑮAÓ=7,BF=1.xEᙶ᪗T(a4),ᑣFᙶ᪗T,Õᐭ×Nᦪ᪆ᓽᑮ.U1VB-6,0,AD=3,AB=8,ETCDḄBAE-3,4,A-6,8.•.•×NᦪØ£-34,m--3x4--12.xØÙAஹEÚḄÀNᦪ⊤ÛTy=kx+b,.J-6Z+Ü=8'[-3k+b=4,43,6=0._4••V=—X.32•••AT>=3,DE=4,'•AE-5.AF-AE^2,AF=7,:.BF=\.xEᙶ᪗Ta4,ᑣÝᙶ᪗Ta—3,1.m■:E,ÝÚᙠÞ=Ø'x:.4஺=஺3,a——1,%%%£-1,4,m=-4,%y-••y—.x

19*+I⚪ὃ12SḄឋGᦪCᦪḄ'᪆).'⚪Ḅᐵ<:s#*4ஹEஹFḄᙶ᪗.27ஹᖪḄZ1ᐗ6ᵬᖪḄZ70ᐗூ᪆௃ᵬᖪḄZxᐗ6ᑣᖪḄZ(x-10)ᐗ6᪷AᦪK=+ᓫ¡ᔠᵨ350ᐗ£¤ᵬ¥ᒹḄ§ᦪា©ᵨ300ᐗ£¤¥ᒹḄ§ᦪ^l6ᓽW"#ᐵ}xḄᑖ)bª6'N«¬®ᓽW"#¡¯.ூ௃'ᵬᖪḄZXᐗ6ᑣᖪḄZ(x-10)ᐗ6᪷A⚪°"350=3ᔩ,xx-10'"x=70,±¬,6x=70:(bªḄ'6.x-10=1.$ᖪḄZ1ᐗ6ᵬᖪḄZ70ᐗ.ூ*+௃I⚪ὃ12ᑖ)bªḄ²ᵨ6'⚪Ḅᐵ<:᪷AᦪK=+ᓫ6ᑡ#ᑖ)bª.