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Rt△ABC中,∠C=90°,a、b、c分别是∠A、∠B、∠C的对边,那么c等于...
Rt△ABC中,∠C=90°,a、b、c分别是∠A、∠B、∠C的对边,那么c等于( )
A.acosA+bsinB
B.asinA+bsinB
C.
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D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131101190906720090824/SYS201311011909067200908008_ST/1.png)
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