真题
解题方法
1 . 在直角坐标系
中,以坐标原点为极点,
轴正半轴为极轴建立极坐标系,曲线
的极坐标方程为
.
(1)写出
的直角坐标方程;
(2)设直线l:
(
为参数),若
与l相交于
两点,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.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/6bdf1e69c1d990633fe9b7706c5394ba.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)设直线l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02b2fc0d39350b7973b46dc6e2d0a95b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56387ff53874620addcb0b91a605a309.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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7卷引用:2024年高考全国甲卷数学(理)真题
2024年高考全国甲卷数学(理)真题2024年高考全国甲卷数学(文)真题专题38坐标系与参数方程专题39坐标系与参数方程(已下线)2024年高考数学真题完全解读(全国甲卷理科)(已下线)2024年高考全国甲卷数学(文)真题变式题16-23(已下线)2024年高考全国甲卷数学(理)真题变式题16-23
2024·全国·模拟预测
2 . 在直角坐标系
中,以坐标原点
为极点,
轴正半轴为极轴建立极坐标系,已知曲线
的参数方程为
(
为参数),直线
的极坐标方程为
.
(1)求曲线
的极坐标方程;
(2)若直线
与曲线
交于
两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/6c960eeb3890483ae6e151e80595dd35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ba661d645f716c8b9c73f80f3da026.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若直线
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
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3 . 在直角坐标系
中,曲线
的参数方程为
(
为参数),过原点
且倾斜角为
的直线
与曲线
交于不同的两点
,以坐标原点为极点,
轴正半轴为极轴建立极坐标系.
(1)求曲线
和直线
的极坐标方程;
(2)若
,求倾斜角
的值.
![](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/e05c1072bfbbe7cdaecdf68ed0f9cea2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.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/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1813c35af72db0e4270851643f0046a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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2024高三下·全国·专题练习
4 . 在直角坐标系
中,曲线C的参数方程为
(
为参数).以坐标原点为极点,x轴正半轴为极轴建立极坐标系,直线l的极坐标方程为
.
(1)求曲线C的极坐标方程;
(2)若直线l与曲线C交于M,N两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c960eeb3890483ae6e151e80595dd35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ba661d645f716c8b9c73f80f3da026.png)
(1)求曲线C的极坐标方程;
(2)若直线l与曲线C交于M,N两点,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/084cf5ffced059f5653ee2a1023518b7.png)
您最近一年使用:0次
2024高三·全国·专题练习
5 . 在平面直角坐标系
中,曲线C的参数方程为
(t为参数).以坐标原点为极点,x轴的正半轴为极轴建立极坐标系,直线l的极坐标方程为
.
(1)求曲线C的普通方程及直线l的直角坐标方程;
(2)若直线l与曲线C有2个不同的交点,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce9775ab3fa476c906599086943fc1c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/014ad7ef4cb7da4a6a0914a0b7125b3a.png)
(1)求曲线C的普通方程及直线l的直角坐标方程;
(2)若直线l与曲线C有2个不同的交点,求实数a的取值范围.
您最近一年使用:0次
2024高三下·全国·专题练习
6 . 在平面直角坐标系xOy中,曲线C的参数方程为
(α为参数).以坐标原点为极点,x轴的正半轴为极轴建立极坐标系,直线l的极坐标方程为
.
(1)求曲线C的普通方程和直线l的直角坐标方程;
(2)已知点
,直线l与曲线C交于点P,Q,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/af27b705ad624fb2858390178d0c1ff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4548a75b9358a5a78c0ba64a89c8394.png)
(1)求曲线C的普通方程和直线l的直角坐标方程;
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383f12cb70ca55eba4ff012771dbfa9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/534093a7e7566c2b0872253e2d7ee8f8.png)
您最近一年使用:0次
2024·全国·模拟预测
7 . 在直角坐标系xOy中,圆C的参数方程为
(
为参数).以坐标原点为极点,x轴正半轴为极轴建立极坐标系,直线l的极坐标方程为
.已知点A在圆C上.
(1)求A到直线l距离的最小值;
(2)若点B在圆C上,且
,直线OA的斜率为2,直线OA,OB与直线l分别交于点M,N,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/172837ef779a4c44961bb1bbb5092f8b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6581916f5a65edfea257c804efee007e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e195d4c94f6d89ae2e9e53f900f2a833.png)
(1)求A到直线l距离的最小值;
(2)若点B在圆C上,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c683d0f5034025be78bb6be865c8368a.png)
您最近一年使用:0次
2024·全国·模拟预测
解题方法
8 . 在直角坐标系xOy中,直线l的参数方程为
(t是参数).以坐标原点为极点,x轴的正半轴为极轴建立极坐标系,曲线C的极坐标方程为
.
(1)求直线l的普通方程和曲线C的直角坐标方程;
(2)若P是曲线C上任意一点,M,N是直线l上的动点,且
为等边三角形,求
的面积S的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2780d1eb7b587f8fef1d1702e7dd29e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20d7fd29e407caca2902956fdca99ad7.png)
(1)求直线l的普通方程和曲线C的直角坐标方程;
(2)若P是曲线C上任意一点,M,N是直线l上的动点,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1ed4c4e8edbd179f3fc38a6653f18c1.png)
您最近一年使用:0次
2024高三下·全国·专题练习
9 . 在平面直角坐标系
中,直线
.以坐标原点为极点,x轴的正半轴为极轴建立极坐标系,圆C的极坐标方程为
.
(1)求直线l的参数方程和圆C的直角坐标方程;
(2)若直线l与x轴交于点M,与圆C交于点P,Q,且
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/766b5c86a384941acb1832b5b041c759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e8cfc074883c8feb919f770dba2bfb9a.png)
(1)求直线l的参数方程和圆C的直角坐标方程;
(2)若直线l与x轴交于点M,与圆C交于点P,Q,且
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dbafec2a1507446cf3dd736a63784ccb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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10 . 已知在平面直角坐标系
中,以坐标原点O为极点,x轴的非负半轴为极轴建立极坐标系,曲线
的极坐标方程为
;在平面直角坐标系
中,曲线
的参数方程为
(
为参数),点
的极坐标为
且点
在曲线
上.
(1)求曲线
的普通方程以及曲线
的极坐标方程;
(2)已知直线
与曲线
分别交于
,
两点,其中
,
异于原点
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcdebedd02b4ea57f8562443742086d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b44bf58b5e810502389242296105213.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5aa4ac48b8f87d4b62574e4a1f756afe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)已知直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9acf80dbde4502a2296046added27268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/21e9feabc99f62ee569b460e61526e2e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9763846b1131e1e3e2d741ad95d5bb0.png)
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