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ǰλãҳ > 杭州市下城区中考数学一模试?解析? - 百度文库

杭州市下城区中考数学一模试?解析? - 百度文库

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  • 2025/6/26 3:17:24

࣬ã

߽ʽΪy=2x4x6

2y=2x2x=0y=2F02

2

ɽû

D꣨26ߵC06 CDCF DCF=90㣬

⣺Pƶ·ΪDP=tQƶ·Ϊ3t1=3t3 QCDʱ03t32ʱ1tʱ ͼ1УPQDFRTQDPRTFCD

==

t=33 ʱt⣮

QCOʱ23t38tK

ʱͼ2УPPKOC

CK=PD=tCQ=3t12=3t5 PQDFRTPKQRTFCD

=

t=2ߣtܣ

t=2⣮

QOEʱ83t310tʱͼ3У

PQDFQQGDFDEGQGQPGQP=90㣬 QPE90㣬QPEڽǺΪ180ìܣʱPQDFֱ t=2ʱPQDF 3ͼ4У

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࣬ã ߽ʽΪy=2x4x6 2y=2x2x=0y=2F02 2ɽû D꣨26ߵC06 CDCF DCF=90㣬 ⣺Pƶ·ΪDP=tQƶ·Ϊ3t1=3t3 QCDʱ03t32ʱ1tʱ ͼ1УPQDFRTQDPRTFCD == t=33 ʱt⣮ QCOʱ23t38tK ʱͼ2УPPKOC CK=PD=tCQ=3t12=3t5 PQDFRT

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