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(2002•朝阳区)在△ABC中,∠C=90°,∠A=30°,sinA+cosB...
(2002•朝阳区)在△ABC中,∠C=90°,∠A=30°,sinA+cosB的值等于( )
A.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019105453850943599/SYS201310191054538509435007_ST/0.png)
B.1
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019105453850943599/SYS201310191054538509435007_ST/1.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131019105453850943599/SYS201310191054538509435007_ST/2.png)
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