在三角形ABC中,A,B,C是三内角,a,b,c分别是A,B,C的对边,已知
(sin2A﹣sin2C)=(a﹣b)sinB,三角形ABC的外接圆的半径为
.
(1)求角C;
(2)求三角形ABC面积的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95bacae35b6e16a0a33c2bdc6bc07df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
(1)求角C;
(2)求三角形ABC面积的最大值.
2011·甘肃·三模 查看更多[2]
更新时间:2016-12-01 01:58:56
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名校
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适中
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