2021-2022学年吉林省长春市南关区九年级（上）期初数学试卷（附答案详解）

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ਭᵨ2021-2022
ᔡ᪍ḕ᧡ᓭᐵᓅᜧ▬ᨴ᪥
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1420.ூᫀ௃(1)᝞qজª«48DCᓽᡠU;(2)᝞qঝEᓽᡠU$(3)᝞qঞ¯ᓽᡠU.ঞூ᪆௃(1)᪷F°±ª«Ḅ²³´QqᓽO$(2)ᑭᵨµ¶ᱯ^ᙠ·¸¹E,ºAEEB=12ᓽO$(3)¹¶T,»PAT,CT,¼½CT¾48,F,FᓽᡠU.¢⚪ὃk¿q-ÀᵨsÁ[¿q¤£Ḅ☢#°±ª«Ḅᑨ²yឋ{£¤£Wwx⚪Ḅᐵ|ÃÄᑭᵨᦪÅᔠḄÇÈÉÊ⚪Ë,ὃÌὃ⚪Í.21.ூᫀ௃(1)BsÎÏÐoᦪ¾,•.Bᙶ᪗ÑÒnoᦪ᪆4-m—2=2,3m=3,•••8(3,2),:k=6,mÎÏÐoᦪḄ᪆y=(2)VBC1y•••C(0,2),BC஻x•BC=3,Ó4=0,ᑣy=1%—2=—2,A71(0,-2),AC=4,S“BC=\AC-BC=6,•.&ABCḄ☢#6.-14⚓ᐳ21⚓

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