在△ABC中,角A、B、C所对的边分别为a、b、c,若
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101431417946135/SYS201311031014314179461016_ST/0.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103101431417946135/SYS201311031014314179461016_ST/1.png)
.
(I)求△ABC的面积;
(II)若b=1,求a的值.
考点分析:
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△ABC中,角A、B、C所对的边分别为a、b、c,若
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n}中,
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n}的通项
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A.470
B.360
C.304
D.169
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