2022届江苏省大丰市某中学中考数学模拟试题含解析

《2022届江苏省大丰市某中学中考数学模拟试题含解析》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。

2022
ḕᜧὃᦪ⚪⚗1.⚪ὃᐜ"#$Ḅ&'ஹ(ὃ)*ṹ,ᑏ./"ᩩ1ṹ(234ᙠᩩ1ṹ56ᑁ஺2.⚪9:ᢥ⌕=ᵨ?஺3.:ᢥ᯿⚪*ABᙠ⚪ᓱᔜ⚪EḄ⚪56ᑁFGH⚪56IᑏḄᫀKᦔMᙠ₝OPஹᔁR⚪Kᦔ஺4.FSTᐜUᵨV?WH2XYZ[ᵨ\⁐^_Ḅ`^?a\஺5.bᢝᓱ☢.ef⌕ᢚhஹf⌕iẚஹikf(UᵨlᦋnஹopqஹrPᑐ஺tஹ⌱v⚪wx⚪yᨵt{p2ᫀx⚪3ᑖ|ᑖ30ᑖ}1.᝞Sᙠ1PᱏABCDAB=4,NA=60஺"1PᱏᢚUAᙠCDḄEᜐᢚFG,FஹGᑖᙠABஹAD±.UsinNAFG
55n”•14---------------------7C.3D.-33.᝞S"tp1PᱏS1
ஹ2
ḄᢚᑮS3
,ᯠYS3
Ḅt{☢S14
,ᑣS3
Ḅ
4.᝞S"2cmḄp1OABCᙠ☢ᙶ᪗OAḄᙶ᪗1,ᑣCḄᙶ᪗w}

1A.(B-1)B.(2,-1)C.(1,-V3)D.(-1,6)5.ᑡ¡¢p2Ḅw}A.a2»a2=2a2B.a2+a2=a4C.(-a2)2=a4D.(a+1)2=a2+l6.£aZ>>09y=ax2¤>=§+/,ḄS«ᜧ¬w}8.®஺OḄ¯°13,±AB஻CD,AB=24,CD=10,ᑣ²1ACDBḄ☢³w)A.119B.289C.77ᡈ119D.119ᡈ2899.ᑡµ¢p2Ḅw}A.a-(b+c\=a-h+cB.(x+1)2=x2+1C.(-4=/D.2a2.3/=6/10.᝞S²1ABCD1AC,BD¶·O,AC=8,BD=6,DHJ_AB·H,¸DH¤AC¶·G,ᑣOG¹w}3A/53y[5n24ºஹ,»⚪wᐳ7⚪x⚪3ᑖ|ᑖ21ᑖ}11.4Ḅ¢½᪷.12.᝞SAB஺OḄ°¸ÀÁ±CDḄH,ÁCDÂRtEF஺OḄᑗᑗF.ÄNACF=65஺,
!|NE=

213.t{ÅÆᑁÇᨵᜧஹ1ÈÉÊḄ²{ᳫᐸÍᳫ1{ஹÎᳫ1{ஹÏᳫ2{Ð᥎Ht{ᳫfÒÓ᥎Ht{ᳫᑣÔÕÖ᥎ᑮÏᳫḄᭆ᳛.14.᝞St{pÙᒹÇÅḄ⊤☢SÄᙠᐸḄÜ{p14ஹ8ஹCᑁᑖ,R〉£ḄᦪU"Þ{⊤☢SᢚᡂpÙYÉ☢RḄÔ{ᦪàÉáᦪᑣ,ᙠ5ᑁḄᦪ.15.®OO¯°1,AஹBᙠ஺OR¸AB=&ᑣABᡠḄᙊᕜt஺.16.1,-2
ᐵ·ᙶ᪗OḄçᙶ᪗.17.᝞S®ᙠRtAABCZACB=90°,AB=4,ᑖèAC,BC°F¯ᙊ☢³ᑖéSi,S,ᑣ2S1+S2ê.Üஹë⚪wᐳ7⚪|ᑖ69ᑖ}18.10ᑖ}ᑡìëíᵨ⚪îïðñ᪥10kmḄóᱥ✂ö÷tøᑖù#úûᐜüÁý20minYᐸþÿ
ᑮ.
Ḅ
Ḅ2
Ḅ.19.5ᑖ᪥⌱!⌱"#$“&'(□ᡃ+,-./”1⚪34567Ẇ9ᢥ;ᡠ=Ḅ⚗?@ᩗᦪC⌱6#6⌱"DEὃGHI᣸᱐LIMN;OP᦮.R⊤TUஹWXᙠ⌱6ZḄ[ᑖ\]^⚗?_`abc1⚪34ᢈe⌱"TU85708085WX90757580

3ᔠhijklmRᑡo⚪^_`⚗?Ḅᩗᦪpabc⚗?CqᡧsḄᙊuvᜧxyTUᙠ⌱6Zz{⚗?ᡠ[ᑖᦪḄ|ᦪ@Z}ᦪy᪷ᡠḄ᪥ᙠTUஹWXZ⌱#$“&'(□ᡃ+,-./”1⚪3456Uᳮᵫ.20.8ᑖᵬஹ!ᕒḄ10ᡂᑖᑴᡂRᑡ{MN;.ᵬQKltfSURB᦮ᳮᑖ᪆ᦪ᝞R⊤:ᙳᡂ/Z}ᦪ/|ᦪ/¡ᵬa771.27b8CD஺஻cḄ¤yᑖ¥ᵨ⊤ZḄz{MN§¨⌕ᑖ᪆ª!ᕒḄᡂ.«⌱¬ᐸZ!#6®q⌱¯!ᕒ°21.10ᑖ±²³Ḅ├µᓫ·yi¸├µᨴºx»¼Ḅᐵ¾᝞;1ᡠ=ᡂ¿y2¸├µᨴº»¼Ḅᐵ¾᝞;2ᡠ=H;1Ḅ;ÀÁÂ;2Ḅ;ÀÃᱥÁᑖyiஹy2ḄÅᦪᐵ¾ÆHOᑏÈɧʤÌ;পbÎNÏU^¯{ᨴµª±²³ÐᓟÒḄᦈÔᨬᜧ?22.10ᑖ᝞;×ACB¸AECDØÙῪÛvÜvsZACB=ZECD=90°,ÝDABÞiḄÝ,

4(1)à^ACE^ABCD(2)«DE=13,BD=12,ÁÂABḄá.23.(12ᑖ)ᙠ☢Ûvᙶ᪗¾xOyZÅᦪy=3(x>0)Ḅ;À¸ÛÁy=x+Z»æçÝA(3,a-2).X(1)(Ḅ¤;(2)ÛÁÈy=—x+é¸xêæçÝ6,¸ÛÁAæçÝC,«SAA6CN6,ᑭḄʤÌ.Y2_1<_3ஹ1124.(14ᑖ)ᐜᓄ¨î¤^----X-2,ᐸZxðñOÙÆ(x-1)»^Ḅòó᦮ᦪô.x-4(x-2)22#ὃmᫀஹ⌱⚪(Ðx⚪öᨵ{øùmᫀÐx⚪3ᑖðᑖ30ᑖ)1ஹBூ᪆௃᝞;^ÎÝEúHE_LADçÝH,ûüAEæGFçÝN,ûüBD,BE.ᵫ⚪ýþ[^DE=LNHDE=60஺ABCDÙÞÜvsᓽ
DHḄHEḄAEḄNEḄEFḄᑣ
sinNAFGḄ.ூ௃᝞EHE_LADH,AEGFN,BD,BE.

5••ABCDAB=4,ZDAB=60°,.,.AB=BC=CD=AD=4,ZDAB=ZDCB=60°,DC஻AB.,.ZHDE=ZDAB=60°,•.•ECD1.,.DE=-CD=12ᙠRtADEHDE=LZHDE=60°.,.DH=1,HE=V3.*.AH=AD+DH=5ᙠRtAAHEAE=JA“2+HE2=1.*.AN=NE=V7,AE±GF,AF=EFVCD=BC,ZDCB=60°...BCDECD.•.BE_LCD,VBC=4,EC=1.,.BE=173VCD/7AB:.ZABE=ZBEC=90°ᙠRtABEFEF^BE'+BF^IH-(AB-EF)7.,.EF=-2ᵫᢚ!ឋ#$NAFG=NEFG,EN2/.sinZEFG=sinZAFG=pp~7-7ᦑ⌱B.2ூ(௃*⚪ὃ-.ᢚ!/⚪Ḅឋ#012ᳮ45ា7Ḅ89:᪀⌼=ᑭᵨ012ᳮ
:@A*⚪ḄᐵC.2ஹBூ᪆௃ᐜ
ḄGHI
ᐸKLᦪ

6᪷ᦪᦪḄᦪḄḄᙠᦪ-"ᑮḄ$1,ᡠ&-"Ḅ333$'(3)*ᦪḄ$+᝞-.ᦪ/ᨵ1234ᡃ67ᐸ9'ᦪ:;'ᦪḄ)*ᦪᱯ=ᙢ1Ḅ)*ᦪ?$1.@AḄ)*ᦪ$ᦑ⌱B.333ஹDூ᪆௃E⚪ᐵH$IJᑖ᪆MᡠNOḄPQIRSTᱏḄVWX.ூ௃⌕[\ᑮW☢S(4),◤⌕_`(4)9ᑁbḄcSᩭḄIRSTᱏḄVWXᦑNOPQeIRSTᱏḄVWXᡠ&஺$IJgᫀᦑE⚪IJgᫀ:஺⌱⚗.ூk௃E⚪ὃnoW☢Sᙠp▭rs9ḄtᵨᨵvwḄxy[z{|}~{|$⚪ᐵH.4ஹAூ᪆௃AO_Ly஺CEJ_yE,ᑣNAOO=NOEC=90஺\MNl+Nl=90஺ᵫIRSḄឋ\MOC=AO,Zl+Z3=90°,MN3=NLᵫAASOCEg/UO஺\"JOE=AO=LCE=OD=#),ᓽ\M-.ூ௃+AZ)_Ly஺CE_LyE,᝞ᡠ+ᑣN4OO=NOEC=90஺/.Zl+Zl=90°."AO=\,AD=1,.OD=^-I2=
.,AḄᙶ᪗:1,.AD=1,OD=BVS஺4BC$IRSZAOC=90°,OC=AO,Zl+Z3=90°,.*.Z3=Z1.

7ZOEC=ZADOᙠAOCENAAO஺V\N3=N2,.•.OCEPAO஺AAS
,.OE=AD=l,CE=OD=43,...CḄOC=AOᙶ᪗S6-1
.ᦑ⌱A.ூ(௃*⚪ὃ-.TUḄឋ#ஹᙶ᪗Vឋ#ஹᐰḄᑨ2Vឋ#YZ[\]TUḄឋ#^_ᐰ$`HaKb/⚪ḄᐵC.5ஹCூ᪆௃ᦑ┯dYB.a2+a2=2a2.ᦑ┯dYC.TeYD.a+1]=cr+2a+1.ᦑ⌱C.ூ(௃*⚪ὃ-ᔠghi⚗hkᦪlKmYlḄmUnopᐰqUrsḄtu\]vuwᑣTetu⚪ᐵC.6ஹDூ᪆௃•ab>0,.a,bhx.7a>0,6>0yzᱥ:|}ᔣ⚔ᙠᦪஹஹ▲ᨵᔠ⌕
Y7஺<0,6<0yzᱥ:|}ᔣ⚔ᙠᦪஹஹ▲8ᔠ⌕
.ᦑ⌱B.7ஹBூ᪆௃᪷ᦪḄGHḄKLᦪ$`ᫀ.ூ௃᪷GHḄឋ#$11=1.ᦑ⌱B.ூ(௃

8E⚪ὃnḄឋ◤⌕ᦪḄ$EᦪḄ$Ḅ)*ᦪ.8ஹDூ᪆௃ᑖ.X¡+জ£AB¤CDᙠᙊ¦4§(ঝ£AB¤CDᙠᙊ¦©§(Mª«¤£¦ᑭᵨ®ᳮ¤ᚖ«ᳮᯠ²ᢥ´S☢µḄ¶ᓽ.ூ·௃+জ¸£AB¤CDᙠᙊ¦4§O᝞1,1•:AB=24cm,CD=10cm,:.AE=12cm,CF=5cm,AOA=OC=13cm,,EO=5cm,OF=12cm,:.EF=12-5=7cmVSACDBḄ☢µ*24+10)x7=119ঝ¸£AB¤CDᙠᙊ¦©§O᝞2,VAB=24cm,CD=10cm,.AE=12cm,CF=5cm,,:OA=OC=13cm,•EO=5cm,OF=12cm,/•EF=OF+OE=17cm.VSACDBḄ☢µ#24+10)x17=289¹VSACDBḄ☢µ:119ᡈ289.

9ᦑ⌱+D.ூk௃E⚪ὃno®ᳮ¤ᚖ«ᳮḄtᵨ.A⚪»¼〉9⚪ḄᐵH$_`ᦪSᔠ¿[ᑖÀ¡¿[ḄtᵨÁ¦=Â.9ஹDூ᪆௃ᵫÃÄ2Åᑣ+᝞-Ä2᜜Ḅ@ᦪ$ᦪÃÄ2²Ä2ᑁᔜ⚗Ḅ12ᩭḄ12)*(ÈᐰWRÊË+(aÌb)2=a2±2ab+b2ᓫ⚗Ëᓫ⚗Ë)ÎÏÐ6ḄÑᦪ)4ÒÓᑖ=)Î/ᙠ'ᓫ⚗ËÔÕᨵḄÒÓᑣÖ4Ḅᢣᦪ:µḄ'@ËXØÙᓽ.ூ௃+Aஹa-(b+c)=a-b-#a-b+c,ᦑAØÙ┯Û;Bஹ(x+1)2=x2+2x+l#2+l,ᦑ⚪ØÙ┯Û(Cஹ(-a)3='/=/,ᦑ⚪ØÙ┯Û(Dஹ2a2»3a3=6a5,ᦑ⚪ØÙIJ(ᦑ⌱+D.ூk௃E⚪ὃno᦮ËḄÎÅ⚪ḄᐵH$ᨵᐵØÙÅᑣ.10ஹBூ᪆௃à⚪᪆+ᙠáSABC஺9AC=6,BD=8,ᡠ&Q4=4,OD=3,ᙠRt/^489AD=5,11124@:ᡠ&5“=5〈60"=12,ᑣ£>"=æᙠRjBHD,ᵫ®ᳮ\BH=ylBD2-DH2=j62-f—Y=—,ᵫOOGSADH?\∅=%ᓽð=ñᡠ&\I5J5BHDH——9OG=~.ᦑ⌱B.4DAB

10ஹ⚪ᐳ7⚪⚪3ᑖᑖ21ᑖ11ஹ16.ூ᪆௃⚪᪆•.,42=16,416ḄuqU᪷.ὃuqU᪷.12ஹ50°.ூ᪆௃DF,AFCEG,•••EFS஺OḄᑗ::.ZOFE=90°,•••ABS=¢HSCDḄ/.AB±CD,ᓽNBHE=90°,■:ZACF=65°,.•.ZAOF=130°,:.ZE=360°-ZBHE-ZOFE-ZAOF=50",ᦑᫀS50°.11入1XOூ᪆௃✌ᐜ᪷⚪¥¦`᪛¨ᯠªᵫ᪛¨
$ᡠᨵ¬Ḅ®V¯°᥎ᑮ³ᳫḄµ¶Iᑭᵨᭆ᳛rsᓽ
$ᫀ.ூ௃¦᪛¨$:|º»¼³³/N/1\/f\/1\ᳫ³³½³³»ᳫ³»¼³

11.ᐳᨵ12ó{Ḅ-.ôõ᥎ᑮ÷ᳫḄᨵ221..ôõ᥎ᑮ÷ᳫḄᭆ᳛$+—126ᦑgᫀ:+y.ூk௃E⚪ὃnᵨ᪛ýŶᭆ᳛⚪ḄᐵH$ᵨ᪛ýŶᭆ᳛.14ஹ1ூ᪆௃à⚪᪆+IRþḄÿ
☢ᙠᐳᑖ.♦.B-1ᡠᙠḄ☢☢.ABᑁḄᦪ1.ᦑᫀ1.15ஹ45°ᡈ135°ூ᪆௃⚪᪆᝞
ᡠ"'OC±AB,A5Ḅ#ᓽAC=BC=-AB=—,22ᙠR3AOC,04=1,AC=—,2᪷&'()ᳮ+OC=yJOA2-AC2=-ᓽ0C=AC,2.A0C/Ὺ12324:.ZAOC=45°,5ᳮN8OC=45,ZAOB=ZAOC+ZBOC=906

12VZAOBVZADB°HA8,.ZADB=-ZAOB=45C,2•.•ᜧ408=270஺ZAEB=135°.ᑣ¿A3ᡠHḄᙊᕜS45ᡈ135.ᦑᫀS45ᡈ135.16ஹ(-1,2)ூ᪆௃᪷¯ÃᐵHÄyÅḄᙶ᪗xKL$ᫀ.ூ௃A(1,-2)ᐵOḄHÄḄᙶ᪗(-1,2),ᦑᫀS(-1,2).ூ(௃Æ⚪Ç⌕ὃ-.ᐵHÄḄḄᙶ᪗ᐵC\]Ḅᙶ᪗ḄÈᓄÊË.17ஹ2ᐔூ᪆௃⚪᪆S.=—=—7D4C2,S.,=—=—nBC'j'2I2J822I2J81z/Aᡠn1+S,-兀(2]=-TIAB2=-7ixl6=2n.8\+BC'88ᦑᫀS2mஹ⚪(ᐳ7⚪ᑖ69ᑖ)18ஹ15km/hூ᪆௃⚪ᑖ᪆ÎÏÐÑÒḄÓASxkm/h,ᑭᵨyÔᐵÕᑡU×aᵨ⚪2⌕ØÙ.⚪᪆:ÎÏÐÑÒḄÓASxkm/hᵫ⚪¥$|0__10j_=x2x3
$x=15.

13YZ[x=15\]^_Ḅ.`abcḄde15km/h.19ஹ(1)fg⚗iḄᩗᦪ\10%,klm⚗inᡧ4Ḅᙊq2\72஺6(2)sᦪ\85,tᦪ\82.5(3)⌱vwxyz“|}~□ᡃ”⚪ᳮᵫ᪆.ூ᪆௃(1)᪷&ᡧ4
ᵨ1ᐸ⚗iḄᩗ+fg⚗iḄᩗᵨ360eklm⚗iḄᩗᓽ+klm⚗inᡧ4Ḅᙊq2ᜧ6(2)᪷&⊤Ḅᦪ&+wxᙠ⌱⚗iᡠ+ᑖᦪḄsᦪtᦪ6(3)᪷&
⊤Ḅᦪ&ᑖ¡¢£wx¤¥Ḅᡂ§ᯠ©ªᜧᓽ«⚪.ூ¬௃(1)fg⚗iḄᩗᦪ\1-20%-30%-40%=10%,klm⚗inᡧ4Ḅᙊq2\360°X20%=72°(2)xᙠ⌱⚗iᡠ+ᑖᦪḄsᦪ\85,tᦪ\(80+85)+2=82.5(3)wx+ᑖ85xl0%+70x20%+80x30%+85x40%=80.5,¤¥+ᑖ90x10%+75x20%+75x30%+80x40%=78.5,V80.5>78,5,.wxḄᡂ§ᦑ⌱vwxyz“|}~□ᡃ”⚪.ூ#®௃«⚪ὃ°±ᡧ4
ஹtᦪஹsᦪஹzᩗ²ᙳᦪx´⚪µ¶ᔠ⊤
¸£ᡠ¹⚪◤⌕Ḅᩩ½¾ᵨᦪ4¶ᔠḄ¿ÀÁÂ\⚪ḄᐵÄ.20>(1)a=7,b=7.5,c=4.2(2)᪆.ூ᪆௃(1)ᑭᵨ²ᙳᦪḄ¢Æ1Ç¢²ᙳᑖᓽ6ÈÉḄᡂ§ÊᑮᜧÌ᣸ᑡᵨtᦪḄ)Ï1Çᑏ£tᦪᓽ6᪷&ÉḄ²ᙳᦪᑭᵨ^ÑḄÆ¢ᓽ6(2)¶ᔠ²ᙳᦪtᦪஹsᦪஹ^Ñ3^☢Ḅᱯ#ÁÂᑖ᪆.ூ¬௃_5xl+6x2+7x4+8x2+9xl(1)ᵬḄ²ᙳᡂ§=7ÔÕÖ,,—1+2+4+2+11•ÉØÙḄᡂ§ÊᑮᜧÌ᣸ᑡ:3,4ஹ6ஹ7ஹ7ஹ8ஹ8ஹ8ஹ9ஹ1(),7+8ÉØÙᡂ§Ḅtᦪb=k=7.5(Õ)2

14ᐸUÚc=iyx[(3-7)2+(4-7)2+(6-7)2+2x(7-7)2+3x(8-7)2+(9-7)2+(10-7)2]=—x(16+9+1+3+4+9)10=4.26(2)ÛqᙳᡂÞßᵬஹáâḄᡂÞKᙳS7ãÛäᦪßᵬå7ãnḄᦪáÛæᦪßᵬå7ãḄᦪᨬèéáå8ãḄᦪᨬèÛUÚßᵬḄᡂÞêáḄᡂÞë2Yìᔠnᔜîïð⌱ñòóᕒõ5êöḄ÷⌱øáõöîSáù$úᑖḄ¬ûᜧ.ூ(௃*⚪ὃ-ḄᩩýtNUÚஹqᙳᦪஹäᦪஹæᦪḄìᔠvᵨ.Z[\]qᙳᦪḄtuᳮUÚḄᭆþ¬ÿ᪷
Ḅᦪ
ᔠᑖ᪆.21721ஹ(1)yi=—§x+7;y2=§X?-4x+26(2)5ᨴᓟᦈᨬᜧᨬᜧூ᪆௃(1)!"Ḅᙶ᪗ᑭᵨ'()ᦪ*ᓽ,-./yzḄ᪆01(2)ᵫᦈW=y.y2ᑡW4xḄ5ᦪᐵ)0ᑭᵨ78-9:5ᦪḄᨬᜧ;.ூ<௃f73k+b=5k=--=(1)>yi=kx+b,@(3,5)/(6,3)AᐭCCீ3.6k+b=3,~i[b=/,2••yi=__x+1.3>y2=a(x-6)2+1,E(3,4)AᐭC4=a(3-6)2+LCa=L3.,.y2=6(x-6)2+1,ᓽyz=gx?-4x+2.(2)ᦈW=yi-y2,2,1,ஹ=---x+1-(—x2-4x+2)33=---(x-5)2+—,331Va=--<0,37Fx=5GWᨬᜧ;=§.7ᦑ5ᨴᓟᦈᨬᜧᨬᜧ§ᐗ.ூ"L௃

15M⚪ὃPQR:5ᦪ/9:5ᦪḄSᵨTUVW'()ᦪ*-᪆0X⚪ᐵYVW78*X-9:5ᦪᨬᜧ;ZᵨḄ8*22ஹ(3)[\]᪆1(3)AB=3.ூ᪆௃(3)ᵫ^Ὺ`abacCAC=BC,CE=CD,ZACB=ZECD=90",CNBCD=NACE,᪷
SASdAACE^ABCDᓽ,1(3)-AD=5,᪷
ᐰ^CAE=BD=33,ᙠRtAAEDgᵫhi(ᳮ-DEᓽ,.ூ௃[\2(3)᝞VAACB4lECDmX^Ὺ`abac.,.AC=BC,CE=CD,VZACB=ZECD=90°,ZACB-ZACD=ZDCE-ZACD,:.NBCD=NACE,ᙠ4BCD/4ACEg,VBC=AC,ZBCD=ZACE,CD=CE,.•.BCD^AACE(SAS)(3)ᵫ(3)o4BCD^AACE,p!JNDBC=NEAC,AE=BD=33,VZCAD+ZDBC=90o,.•.ZEAC+ZCAD=90°,ᓽNEAD=90஺VAE=33,ED=33,.,.AD=7132-122=5>.AB=AD+BD=33+5=3.ூ"L௃M⚪ὃPQᐰ^bacḄᑨ(4ឋuvὃPQ^Ὺ`abacḄឋu/hi(ᳮḄSᵨ.

16cBὃ#3.ᐰ/324Ḅᑨ)ឋî63./Ὺ12324.23ஹ(1)a=3,b=-2;(2)ï8ᡈ”3ð2ூ᪆௃(1)ñA#ᙶ᪗ᐭõö᪆Æ´)£aḄ÷´)£Aᙶ᪗ᐭðøùᦪ᪆Æ£bḄ÷6(2)ᑖ¡£1úhxûüý#D,þ£1úLxûüý#B,Êÿ
LhCᙶ᪗ᑖজSAABC=SABCD+SAABI>=6ᑭᵨḄ☢
mḄ!ঝSAABC=SABCD-SAAUD=6ᑭᵨḄ☢
mḄ!#$
mḄ%!'.ூ௃(1),•,Aᙠy=3,-.Xca•**ci-2=/3.a=3.A(3,1)0Aᙠ,-..l=3+b.b=-2,1᪆3y=x-2(2)4y=x—2x5Ḅ6஺.D(2,0)জ஺ᙠAḄ.8᝞,(1)

17;y=—x+<x56B:.B(60)(஻>3)•.•y=—X+/Hy=x-2=C.>=%-2♦Vy=r+"im+2x=21Bm-2yC2m+2m-22'2,**SAABC=SABCD-SAABD>61/7m-21/τ•—x(jn-2)x——-----—(<—2)x126:.m>8ঝG஺ᙠAH8᝞,2SAABC=SABCD+SAABD>6

18>6K.ᡠMN8ᡈm<—2ூQ௃S⚪ὃVW/XYᦪ[\]YᦪḄ^⚪Ḅ☢ᑭᵨWᦪ_ᔠḄabcdefghiᦪjk1l⚪Ḅᐵn.I24ஹ--2ூ1᪆௃ூᑖ᪆௃ᐜ᪷tᑖ3Ḅuvjᑣᓄyᯠ{|
}~3Ḅ᦮ᦪ1ᨬ{ᔠᩩḄxḄ!ᐭᓄy{Ḅ_vᓽ.—3(x+2)(x-2)1௃3CA~^^(x+2)(x-2)x—2x—2(x+l)(x-l)x-2(x+2)(x-2)(l+x)(l-x)1x+2',**-----(X-1)>/922.,.x-1<-1,Ax<0,᦮ᦪ160,x=0,x=03CL.2ூQ௃l⚪ὃVWᑖ3Ḅᓄy!1⚪Ḅᐵnkcdefᑖ3Ḅuvjᑣ.