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已知四棱柱ABCD-A1B1C1D1,侧棱与底面垂直,底面ABCD是菱形且∠BA...
已知四棱柱ABCD-A
1B
1C
1D
1,侧棱与底面垂直,底面ABCD是菱形且∠BAD=60°,侧棱与底面边长均为2,则面AB
1C与底面A
1B
1C
1D
1,ABCD所成角的正弦值为( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102807464981722/SYS201311031028074649817012_ST/0.png)
B.2
C.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102807464981722/SYS201311031028074649817012_ST/1.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102807464981722/SYS201311031028074649817012_ST/2.png)
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A.
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D.
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条件 | 方程 |
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F
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103102807464981722/SYS201311031028074649817007_ST/0.png)
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D.
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