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ǰλãҳ > 2014八年级数学下册第十六章二次根式单元综合测试题A?新版)新人教版 - 百度文库

2014八年级数学下册第十六章二次根式单元综合测试题A?新版)新人教版 - 百度文库

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  • 2025/12/2 22:32:03

ѡD

ѡC

⣨ÿС3֣18֣ 11⣺⣬a+20

ãaݩ2 ʴǣݩ2 12⣺ԭʽ=|

2|=2

13⣺x202x0

x=2 ʱy=

=

+1

2000

14⣺1

2000

=[]

2000

=1

=14

24

ѡ14

24

⣨6С⣬52֣ 17⣺ԭʽ=1+2+

52

=3+352

=

2

18⣺ԭʽ=

= =

=

ʱ ԭʽ=

=

19⣺ݶθʽʿɵãa20050a2005ԭʽɵãa2004+

=a

=2004

a2005=20042

a20042

=2005

20⣺2

3aΪ

С֣

=2009

221⣺S1=1+

=+

= = +

=

S2=1+

=

+

=

S3=1+

=

Sn=1++=

==

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ѡD ѡC ⣨ÿС3֣18֣ 11⣺⣬a+20 ãaݩ2 ʴǣݩ2 12⣺ԭʽ=|2|=2 13⣺x202x0 x=2 ʱy= = +1200014⣺12000=[]2000=1 =1424 ѡ1424 ⣨6С⣬52֣ 17⣺ԭʽ=1+2+52 =3+352

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