在直角坐标系xOy中,以原点为极点,x轴的正半轴为极轴建立极坐标系.设点A,B分别在曲线
(θ为参数)和曲线C2:ρ=1上,则
的最小值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7bc61ffcbc9167b360f854b8bf30fa7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
更新时间:2018-01-09 19:47:50
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相似题推荐
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容易
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【推荐1】已知圆的极坐标方程为
圆心为
点
的极坐标为
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098658ddd8826dc6637297e1e6c7acdc.png)
_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aaa01ed331e400ca315ecb1cd4eb718.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2aeb71ae0a3cb5549d233528bcc8de81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5f824a2b072a669c17b05fef0d7b6dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/098658ddd8826dc6637297e1e6c7acdc.png)
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填空题-单空题
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容易
(0.94)
解题方法
【推荐1】将参数方程为
(
为参数)化为普通方程为_______ .
![](https://img.xkw.com/dksih/QBM/2016/12/17/1619429694144512/1619429694423040/STEM/7e4a96c519ac4fbaaadf7dc32709a622.png?resizew=88)
![](https://img.xkw.com/dksih/QBM/2016/12/17/1619429694144512/1619429694423040/STEM/13f3748d5f3149a0950c319cb356f97b.png?resizew=9)
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