在极坐标系
中,射线
的极坐标方程为
,曲线C的极坐标方程为
,且射线
与曲线C有异于点O的两个交点P,Q,
(1)求
的取值范围;
(2)求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3e5af20b2f8c1fba4470f9650989e51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0723ebcac812fcadbe8bec78437bcecb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a484392ff7ca307d1e8d150c4954ad0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11bc05f41215f9894e11d1df0465751a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/740717aeb9f4496d9fe30471a100008a.png)
21-22高二下·广西柳州·期中 查看更多[3]
广西柳州高中、南宁二中2021-2022学年高二下学期期中联考数学(理)试题江西省赣州市赣县第三中学2021-2022学年高二下学期6月月考数学(理)试题(已下线)专题12-1 参数方程与极坐标归类-1
更新时间:2022-06-05 21:16:38
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【推荐1】选修4—4:坐标系与参数方程
在直角坐标系中,以原点为极点,
轴的正半轴为极轴建立坐标系.已知曲线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
,过点
且倾斜角为
的直线
与曲线
分别交于
两点.
(1)写出曲线
的直角坐标方程和直线
的参数方程;
(2)若
成等比数列,求
的值.
在直角坐标系中,以原点为极点,
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9769c2a8542105bc62280484f5e05db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9663a933e417c0d9e3dd151899f161da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af9955b5aebb73cd84447e8541f901ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
(1)写出曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/edbe7df9aef23d33d1fc2d1d338904a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】在直角坐标系
中,以O为极点,x轴的正半轴为极轴建立极坐标系.已知曲线
,曲线
的参数方程为
(
为参数),点P是
上一点,其极坐标为
.设射线
与曲线
交于O,A两点,与曲线
交于O,B两点.
(1)求m的值,并写出曲线
的极坐标方程;
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac8a3bffe545af2299cf999d44767206.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b1c47990a9c7dce19c603c055c5757c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/955acb6d8b6eabcd2b67fbc1d422c288.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/608dc515698f1006935497a845a5ef4d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)求m的值,并写出曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e77c0dd9a16361a743d4673aa6ed0d16.png)
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【推荐3】在直角坐标系
中,直线
的参数方程为
,(
为参数),以坐标原点为极点,
轴的正半轴为极轴建立极坐标系,曲线
的极坐标方程为
.
(1)求曲线
的直角坐标方程,并化为标准方程;
(2)已知点
的极坐标为
与曲线
交于
两点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5d6313f95142fa5391bff702f922a4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a547d38bda9f5b6613c969a8cae51f3a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9f6f30ed51b2e83ff1e144165761e3ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4480f6945328d2e7924b0f4789cedf1.png)
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【推荐1】在极坐标系中,射线
与以
为圆心,
为半径的圆相交于
两点.
(1)求圆
的极坐标方程;
(2)若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/17f5d2e8186f0173d7862b1d39fb3dc2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11f4d97a78d11dca3bbf80fef5b966d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91e07104b699c4012be2d26160976a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/601a0490e1b69cb05b9fd83ebd88ac91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a7b915277169254e670ea51b693b9fc.png)
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【推荐2】在极坐标系中,已知点
在直线
上,点
在圆
上(其中
).
(1)求
的值;
(2)求出直线
与圆
的公共点的极坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ab83adb657872e549cdb1c7f83fd5db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee85ced1fc1ed859da4a5bed97d25aae.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19677909b586500740419d3483849f9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b50e956bf646c9780c70a4b5ea83d95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0b2213349cbafcd8168f9135c891a9e.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37e14db015a09a19e45cb91ad39036c2.png)
(2)求出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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