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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/20131021232602463421933/SYS201310212326024634219001_ST/0.png)
B.1
C.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602463421933/SYS201310212326024634219001_ST/1.png)
D.
![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602463421933/SYS201310212326024634219001_ST/2.png)
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,cosB=
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(2002•湖州)sin30°+tan45°的值为( )
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+1
B.
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C.
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D.1
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![manfen5.com 满分网](http://img.manfen5.com/res/CZSX/web/STSource/20131021232602463334902/SYS201310212326024633349026_ST/1.png)
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