原创2023学年中考数学全真模拟预测试卷(解析版)

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ÎBiªᢚ,DAæBBi.ᳮᵫ0ªhÐ&%ᚖê«ᑖḄ|si\i.67⚪ὃ:;%´JhiḄᑨSëឋíஹiḄᑨSஹÅ=>ᦪḄᨬË.ᐵN0]ᙠÄ᪷§%´JhiëtuᩩïU³%ᐵÐPḄ⊤Ǿ
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ᓽU³[.26.(14ᑖ)(2022•`abc2023)᝞e
êÐy=-x+3¼x,yñᑖQØÄ6A,B,¼òµó>ᦪḄeôØÄ6P(2,1).(1)Uöòµó>ᦪḄᐵM¾)(2)ÚPCJ_yñÄ6C,6AᐵÄyñḄªø6AXজUAA'BCḄᕜûüsinNBA'CḄË)ঝªᜧÄ1Ḅþᦪm,Uxñ-Ḅ6MḄᙶ᪗sinZBMC=l.

24ὃᦪᔠ⚪ᦪᦪ᪆"#$ᳮ&'Ḅ()ᑨ+ឋ-ᚖ/ᳮ01+ᙊḄ34ᐵ┦787ᦪḄ9:;<⚪=>?.⚪)ᑖA1CDᦪḄᐵ"y=NᯠHI(PḄᙶ᪗A2,1CMᐭᓽP.X᪆)A2CজᐜS01y=-x+3+xஹy

25x=0;y=0+3=3,ᑣ(BḄᙶ᪗f(0,3).0B=3.y=0,0=-x+3,x=3,ᑣ(AḄᙶ᪗f(3,0),0A=3.)(Aᐵoy<Ḅ|(fM,.,.0A,=0A=3.•.,PC_Ly<(P(2,1),.,.0C=l,PC=2..\BC=2.VZA0B=90°,0A'=0B=3,0C=l,••A'B=3-\/2>A'C=I>/IQ.AA'BCḄᕜ_f3V2+VTO+2.VSABC=1BC»A/0=1AZBCD,A22.•.BCA'0=A,BCD..•.2X3=3V2>

26a¨`(BஹC©u/fmḄ஺E,ª«CE¬_Y஺Eo(P,ª«BP,`(EaEG_LOB,ᚖefG,`(EaEH_Lx<ᚖefH,᝞2জᡠ.•••CP{஺EḄ0/,.,.ZPBC=90°./.sinZBPC=^=-2-=l.PC21rirVsinZBMC=l,ITAZBMC=ZBPC....(Mᙠ஺Ey.•.•(MᙠxEC..,.OE+x<°±..•.X

27ঝm=2,EH=EC..,.0E+x<°ᑗ.I.ᑗ(ᙠx<Ḅ·u2EH-MH=7EM2-EH5=7m2-4"VEH±MM/,.•.MH=MZH.

28VZEGC=90°,GC=1,EC=m,,,EG=7EC2-GC2=V777-•••°M=OH-MH=7TG-77%•••OM-OH+HM-TTG+VT%•••MA77^7-G,°CஹM'oCII.Y(ᙠx<Ḅ½u2e⌕Ḅ(MḄᙶ᪗f3m2_1-.2_70ஹA42-]+ᙠ2-4°CஹAË42Ë]+ᙠ2-4,°CஹA-7m2-1-7m2-4»0"

29(Ï⚪ὃÐÑᵨᦪᦪḄᐵ"ஹ#$ᳮஹ87ᦪḄÒ)9ஹ&'Ḅᑨ+ឋ-ஹ01+ᙊḄ34ᐵஹᚖ/ᳮὃÐÑᵨ☢h87'ḄÓὃÐÑÔ`᪀⌼×ØᙊÙÚ⚪ᔠឋÛÜÝÞᦪÛᜧ.ᵫBC=2,sinNBMC“ὶâᑮ(MᙠiBCftu/fmḄ஺Ey{ÙÏ⚪Ḅᐵä.

30