在△ABC中,tanA=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225315214817246/SYS201311012253152148172018_ST/0.png)
,tanB=
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225315214817246/SYS201311012253152148172018_ST/1.png)
.
(I)求角C的大小;
(II)若AB边的长为
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101225315214817246/SYS201311012253152148172018_ST/2.png)
,求BC边的长.
考点分析:
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