在极坐标系中,曲线ρ=2cosθ与曲线
![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231546142782392/SYS201311012315461427823014_ST/0.png)
的交点的极坐标为
.
考点分析:
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某几何体的三视图如图所示,则该几何体的表面积为
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已知空间整数点的序列如下:(1,1,1)(1,1,2)(1,2,1)(2,1,1)(1,1,3)(1,3,1)(3,1,1)(1,2,2)(2,1,2)(2,2,1)(1,1,4)(1,4,1)(4,1,1)(1,2,3)则(1,5,1)是这个序列中的第
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向量
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231546142782392/SYS201311012315461427823009_ST/0.png)
(a>0,b>0)的左、右焦点,P为右支上一点,点P到右准线的距离为d,若|PF
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![manfen5.com 满分网](http://img.manfen5.com/res/GZSX/web/STSource/20131101231546142782392/SYS201311012315461427823009_ST/1.png)
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D.[2,
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