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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 11:35:00

2016㽭ʡ³пѧһģԾ

ο

һѡ⣺10С⣬ÿС3֣30֣ 1иʽȷǣ A2=0

0

B3=3 C

1

=3 Dtan60=

㡿ǵǺֵƽָݣָݣ ֱ0ָݼָݵļ㷨ĿǵǺֵԸѡһжϼɣ 𡿽⣺A2=10ʱѡ B3=٩3ʱѡ C

=3١3ʱѡ

ʱѡȷ

1

0

Dtan60=ѡD

⿼ǵǺֵǸǶȵǺֵǽĹؼ

2жθʽУθʽǣ A

B

C

D

㡿θʽ

жһθʽDzθʽķθʽǷͬʱ㣬ͬʱľθʽͲǣ 𡿽⣺Aʽ BD

=

ĸθʽ

=aܿþθʽ

2

=2ܿþ

ѡC

⿼θʽĶ壮θʽĶ壬θʽ 1ĸ

2ܿþʽ

3Уȷǣ

Ax?x=x B3x+2x=5x Cx=x Dx+y=x+y

㡿ȫƽʽϲͬͬݵij˷ݵij˷ij˷

Aͬݵij˷㣻 Bͬܺϲ Cݵij˷㣻 Dȫƽʽ㣮

𡿽⣺Ax?x=xѡȷ B3x+2x=3x+2xѡ Cx=xѡ

Dx+y=x+2xy+yѡ ѡA

2

2

2

4

4

2

3

6

2

3

2

33

3

6

3

3

6

2

3

5

2

3

5

2

2

2

4

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2016㽭ʡ³пѧһģԾ ο һѡ⣺10С⣬ÿС3֣30֣ 1иʽȷǣ A2=0 0B3=3 C1 =3 Dtan60= 㡿ǵǺֵƽָݣָݣ ֱ0ָݼָݵļ㷨ĿǵǺֵԸѡһжϼɣ 𡿽⣺A2=10ʱѡ B3=٩3ʱѡ C=3١3ʱѡ ʱѡȷ 10Dtan60=ѡD

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