2022-2023学年河南省开封市中考数学专项突破仿真模拟卷（一模二模）含解析

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2022-2023
ᓭḕὃᦪ⚗ẚᔁஹ⌱⌱ᜧ⚪ᐳ10⚪⚪3ᑖᐳ30ᑖ⚪ᨵ⌱⚗.1.-2018Ḅ᎔ᦪ11A.2018B.-----C.-2018D.------201820182.᝞$ᡠ&'()Ḅ*+$4.-ᐵ/xḄᐗ2345a/-4x+2=0ᨵ:;ᦪ᪷ᑣaḄ>?AA.a<2B.a<2D#0C.a<2D.஻V2DE05.Fᑡ$IJKL$IḄA6.᝞$ᙠ஺஺JOABC,N4OB=48஺஺S஺஺TUᑣNNOCḄVᦪB.42°C.48°D.12°7.YZ[ᙠ\]^ᑁ`ab᝕Z30eᔜbgṹḄZi᝞j⊤:gṹ/ᔖn2222.52323.52424.525o1⚓/q53⚓

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62022-2023
ᓭḕὃᦪ⚗ẚᔁqஹ⌱q⌱Jᜧ⚪ᐳ10⚪&⚪3ᑖ&ᐳ30ᑖ&⚪ᨵq⌱⚗.1.-2018Ḅ᎔ᦪ^ூᫀ௃Dூᑖ᪆௃᪷᎔ᦪḄᭆᓽ¢.ூ£௃-2018Ḅ᎔ᦪ^J-¥q.2018ᦑ⌱D.⚪ὃ¨©᎔ᦪḄRª&⚪Ḅᐵ¬^®¯A᎔ᦪḄᦪḄ°A1.2.᝞ᡠ²³´µḄ¶·^ூᫀ௃Aூᑖ᪆௃᪷³´µḄ·p¸ᑨºᓽ¢ூ£௃᪷³´µḄ·¢R&QR7Ḅ¶·^ᦑ⌱A.⚪»⌕ὃ¨©³´µḄ·&½ᑖ᪆ᑨº^⚪Ḅᐵ¬.3.¾¿ᦻᓄ⍡ÃOÄgOÅ670000Æ&Çᦪ670000ᵨÉÊËᦪ¸¢⊤²AA.6.7X10'B.6.7XI05C.6.7X10r,D.67X10)c7⚓/g53⚓

7ூᫀ௃Bூ£௃Í⚪᪆JᵫÉÊËᦪ¸¢R&670000=6.7xlO5.ᦑ⌱BÎJÉÊËᦪ¸Ḅ⊤²7Aax10"Ḅ7&ᐸ;1<10,஻A᦮ᦪ.஻Ḅ,^᧕┯,ᵫ]670000ᨵ6,ᡠX¢XÓ“=6-1=5.4.Kᐵ]xḄqᐗÕÖp×ax2-4x+2=0ᨵØᦪ᪷&ᑣaḄ+,.^A.a<2B.aW2uÚ0C.a<2D.a<2uᑖ0ூᫀ௃Bூᑖ᪆௃᪷p×ᨵØᦪ᪷&¢Û᪷ḄᑨÜḄ,ᨵ]0,ᵫÝ¢Ûᐵ]஺Ḅᨵß&ᨵßàqᐗÕÖp×ḄÓáᓽ¢Ûᫀூ£௃J᪷⚪âÛ}0u4=-4
2-4«a«2>0,Ûa<2u}0.ᦑ⌱JB.⚪ὃ¨©᪷ḄᑨÜJqᐗÕÖp×ax2+Z>x+c=0aãḄ᪷[A=ä-4“஺ᨵ᝞{ᐵåJ">%&p×ᨵᨵæßḄØᦪ᪷"A=0%&p×ᨵæßḄØᦪ᪷"AV0%,p×çØᦪ᪷.5.èᑡ7;&^lm7Ḅ^ூᑖ᪆௃᪷êq7ëìqíî180°,᝞ïíîðḄ7ñò[óᩭḄ7õᔠ&÷øù7úûülm7&ùûülm¢Ûᫀ.ூ£௃Aஹᨵ^lm7&ᦑÝ⌱⚗┯ýBஹᨵ^lm7&ᦑÝ⌱⚗┯ýCஹᨵ^lm7&ᦑÝ⌱⚗┯ýDஹ^lm7&ᦑÝ⌱⚗c8⚓/g53⚓

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13ᦑ(ᫀgy="XV216.ᙠAABCDesin4—=0,NAஹNBýF┦ᑣNCḄçᦪg2ூ&'(ᫀ௃105°\2ூᑖ᪆௃ÿ$---
--6-1--c--o-s5—0,᪷ᦪḄឋsiM-=02122--cos5=0«ᓽsiM=cosB=—.᪷Ḅᦪ!"NAஹNBḄ'222ᦪ(ᑭᵨ+Ḅᑁ-.ᳮ"NC'ᦪᓽ.S39ூ34௃V+----cosB=0,22sin/t----=0-----cosB=022ᓽsirU=—cosB=—•22?@NAஹNBᙳB┦AZA=45°,NB=30஺ᙠAABCIZA+ZB+ZC=180°,AZC=105°.L⚪ὃOPḄᦪ!QᦪḄឋ4RL⚪ḄᐵTUVsiM=জcosB=-224XY⚪Z[⌕]Ḅᦪ!.17._RtA/8CIZC=90°,AC=5cm,BC=12cm,ᑣA/BCḄᑁᑗᙊfgBhcm.ூijRᫀ௃2ூ34௃lABஹBCஹACm(DOḄᑗqᑖsBDஹFஹEv᧕xyz+OECFUi{+v|}᪷ᑗ~.ᳮCE=CF=0.5(AC+BC-AB),ᵫ"VrḄ.4R4᝞v14⚓/53⚓

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15ூ34௃½⚪ᑖ᪆᪷¡¿ᦪḄÀÁ¹ºᓽ.½⚪4᪆¡=2—2—2x@—1+Ä—1,2=2-2-73-1+73-1,=—2.20.ᨵÆ᪵h⍝⚪“"ÉZ--—+Ê1Ḅ!ᐸIa=2018.“ÍÎÏ”ÑᨵÍÒÓd~-1u~+2a+1iz+1a=2018┯ᢌᡂa=2008,ØÙḄµÚÛᓾUijḄÝÞ³ß.ூijRᫀ௃“ÍÎÏ'’ÑᨵÍÒÓa=2017┯ᢌᡂa=2007,ØÙḄµÚÛᓾUijḄ.ூ34௃½⚪ᑖ᪆᪷ᑖ¡ḄâᔠÀÁ¹ºᓄåᓄåÚÛm஺æᐵᓽ4R.½⚪4᪆ç_Q(Q+1)Q+1a+\¡+(a+l)2Q-l'a1a-\a-Va-\_R,=1.¡Ḅ!m஺æᐵᓽ,“ÍÎÏ''ÑᨵÍÒÓa=2017┯ᢌᡂa=2007,ØÙḄµÚÛᓾUijḄ.21.᝞BDUé+ABCDḄhᩩ¦~.(1)ëBDḄᚖíîᑖ~EF,ᑖsïADஹBC§qEஹF,ᚖ°BqO.(⌕"ᵨðëñᶇëóôÑᨵ⌕"ᑏë)vூijRᫀ௃(1)ëö4᪆v(2)x³ö4᪆;16⚓/53⚓

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