过点
作倾斜角为
的直线与曲线
交于点
,
求
的最小值及相应的
值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/749e38a6bdf1096684de28e182399761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d1a34ae2b8c77f8d7e355c6d1d667e.png)
![](https://img.xkw.com/dksih/QBM/2010/5/19/1569735349043200/1569735353950208/STEM/c4a27593a1954b6bbd53aa9523cc9445.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d5f382f5017a9ce20f011b9220c723f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d1a34ae2b8c77f8d7e355c6d1d667e.png)
9-10高二下·黑龙江鹤岗·期中 查看更多[4]
(已下线)2010年黑龙江省鹤岗一中高二下学期期中考试数学(理)(已下线)2014届高考数学总复习考点引领+技巧点拨选修4-4第3课时练习卷(已下线)2013-2014学年贵州省遵义航天高级中学高二下学期期中文科数学试卷广西壮族自治区陆川县中学2017-2018学年高二下学期期末考试数学(理)试题
更新时间:2016-12-02 23:29:56
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【知识点】 曲线的参数方程
相似题推荐
解答题-问答题
|
较易
(0.85)
【推荐1】选修4-4:坐标系与参数方程
已知曲线
的参数方程为
(
是参数).以原点
为极点,
轴正半轴为极轴建立极坐标系.
(Ⅰ)求曲线
的极坐标方程;
(Ⅱ)已知直线
倾斜角为
,且过点
,若曲线
与直线
交于
两点,求
的最大值和最小值.
已知曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5810d9948207f4b8d5016475561bb49f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(Ⅰ)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(Ⅱ)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5858ee1ce52b251816757257a11c29.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2aa4e90ecac79d717e35da0dacbb7be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53b33a08aa12bc8a1c671f8cb673ed0b.png)
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解答题-问答题
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较易
(0.85)
解题方法
【推荐2】(1)设
=cos θ,θ为参数,求椭圆
+
=1的参数方程.
(2)将下列参数方程化为普通方程.
(i)
(t为参数);
(ii)
(θ为参数).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e9cd9c1ba23a77c2ca6c6e223196882b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8d3e830c707265edc4ace52a36ea387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/295384c1f4389cac2adfceb0565d4ca0.png)
(2)将下列参数方程化为普通方程.
(i)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/902ce43e4acd301b7815e2d5d6c1e5c2.png)
(ii)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c01d198ca545c46ad7827bf7ba8f3b08.png)
您最近一年使用:0次
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较易
(0.85)
【推荐3】在直角坐标系
中,曲线
的参数方程为
(
为参数).以坐标原点为极点,
轴正半轴为极轴建立极坐标系,直线
的极坐标方程为
.
(1)求曲线
的普通方程和直线
的直角坐标方程;
(2)若曲线
与直线
有两个公共点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c853ea12267a5e0856a9d3b201085e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12e9bda1006ec069ebec8301af592451.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次