在△ABC中,角A,B,C所对的边分别为a,b,c,且满足sin
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100404506068508/SYS201311031004045060685018_ST/0.png)
,
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100404506068508/SYS201311031004045060685018_ST/1.png)
是b和c的等比中项.
(1)求△ABC的面积;
(2)若c=2,求a的值.
考点分析:
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