解答题-问答题 容易0.94 引用3 组卷1685
已知曲线
的参数方程为
(
为参数),曲线
的极坐标方程为
.
(1)将曲线
的参数方程化为普通方程,将曲线
的极坐标方程化为直角坐标方程;
(2)曲线
,
是否相交,若相交请求出公共弦的长,若不相交,请说明理由.
![](https://img.xkw.com/dksih/QBM/2010/8/6/1569808198877184/1569808204357632/STEM/77de95f78e5447809db0887eea254600.png)
![](https://img.xkw.com/dksih/QBM/2010/8/6/1569808198877184/1569808204357632/STEM/44f4d6391d4e4177bebdcec2a8e0380c.png)
![](https://img.xkw.com/dksih/QBM/2010/8/6/1569808198877184/1569808204357632/STEM/e739d5ea94544d5d92682b49ea80c927.png)
![](https://img.xkw.com/dksih/QBM/2010/8/6/1569808198877184/1569808204357632/STEM/2790d5a37db446e6bfac62640cf1069b.png)
![](https://img.xkw.com/dksih/QBM/2010/8/6/1569808198877184/1569808204357632/STEM/5cd95f4fcf704f9bab65c282e74f61bd.png)
(1)将曲线
![](https://img.xkw.com/dksih/QBM/2010/8/6/1569808198877184/1569808204357632/STEM/77de95f78e5447809db0887eea254600.png)
![](https://img.xkw.com/dksih/QBM/2010/8/6/1569808198877184/1569808204357632/STEM/2790d5a37db446e6bfac62640cf1069b.png)
(2)曲线
![](https://img.xkw.com/dksih/QBM/2010/8/6/1569808198877184/1569808204357632/STEM/77de95f78e5447809db0887eea254600.png)
![](https://img.xkw.com/dksih/QBM/2010/8/6/1569808198877184/1569808204357632/STEM/2790d5a37db446e6bfac62640cf1069b.png)
2010·辽宁·一模
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