2022-2023学年福建省仙游县联考数学九年级上册期末达标测试试题含解析

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2022-2023
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µ³4OE=GP,EF=QN,DF=HM,DE//GP,DF//HM,EF//QN,NPEF=90஺,᪷⚪4¶ªCPEQ+ª!1ḄB᪷Ḅᑨd4¡/OE/s/UCB,᪷Ḅឋ-4DE.EF-.FD=ACCBBA=341,·³᪷ᙊm஺¸¹Ḅº»ᑡ½3n¾½DEஹEFஹ®0Ḅ᪷´Ḅឋ-4¡GPஹQNஹḄ᪷ᑗ°dᳮ4¬AG=AH=x,BN=BM=y,᪷°¿ḄfÀ⊤½ACஹBCஹA3Ḅ·³᪷4஺஺ÃÄ=341ᑡ½:²³n½xஹyḄÅ·³ᓽ4n/A5CḄᕜ.ூ௃VACCBBA=341,¬AC=3a,CB=4a,BA=la
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48=341,(x+1.1)(j+2)(x+y+2.1)=341,+

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13'⚪ὃ*Ḅᑨd`abcḄᑨddᳮ+⚪Ḅᐵg.18ஹ3ூᑖ᪆௃᪷{|Ḅឋ-4aACG!ª·³¡½8c®CG=4G=2,AOG+Ç20°Ḅ,¡ᑮOGḄᑭᵨ°¿ḄfÀᓽ4¡½ÈÉ.ூ௃᪷{|Ḅឋ-4AC=ACNC4G=60°,BiCkBC,NBiGA=NC,lf...ACCi!ª,NAGC=NC=60°,CG=AG.TG+BCḄl%:.BCI=CC\=AC\=29AZB=ZCIAB=20°.VZBiCiA=ZC=60°,AZADCi=180°-(ZCiAB+ZBiCiA)=180°-(20°+60°)=90°,1ADCi=-ACi=l,2ABiZ)=BiCi-DCi=4-l=2.ᦑᫀ!2.ூ%&௃'⚪ὃ*{|Ḅឋ-YËḄឋ-¡½4DG+Ç20°Ḅ+'⚪Ḅᐵg.ஹ⚪(ᐳ66ᑖ)19ஹ—Ï.3ூᑖ᪆௃ᐜnÐᱥ°ji;᪷ÒdÓᦪZnÐᱥ°᪆:;n~ᦪᨬᜧÅ.ூ௃ᵫ⚪¡C(0,1),D(6,1.5),Ðᱥ°Ḅji!°x=4,¬Ðᱥ°Ḅ⊤¦:!y=ax2+bx+l(a^O),b--------4ᑣ⚪¡J2a------------------,1.5=36a+6/7+l1a=------24¡
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