ABC中,a、b、c分别是角A、B、C的对边,
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<C<
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,且
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.
(1)判断△ABC的形状
(2)若
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,求
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的取值范围、
考点分析:
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100557971767920/SYS201311031005579717679018_ST/0.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100557971767920/SYS201311031005579717679015_ST/0.png)
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131103100557971767920/SYS201311031005579717679015_ST/2.png)
=
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