2021高三·全国·专题练习
1 . 在平面直角坐标系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,圆C的圆心的极坐标为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab131295c8042fcb13918fe1b4bfcdd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c24095e409b025db711f14be783a406c.png)
A.![]() | B.(1,π) | C.(0,-1) | D.![]() |
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5卷引用:江西省永新中学2021-2022学年高二上学期期中考试数学(理)试题
2 . 在直角坐标系
中,已知曲线C:
(
为参数),以坐标原点
为极点,以
轴为极轴建立极坐标系,直线
的极坐标方程为
.
(1)求曲线C的普通方程和直线
的直角坐标方程;
(2)求曲线C与直线
交点的极坐标(
).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/049d5edd51cecf3f8343aa6615225535.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad95ada206631f6a8b29fbbc05408d00.png)
(1)求曲线C的普通方程和直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)求曲线C与直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/27a98e43a9a678d5abbb9d7171040798.png)
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10卷引用:新疆阜康市第一中学2020-2021学年高二下学期期中考试数学(文)试题
新疆阜康市第一中学2020-2021学年高二下学期期中考试数学(文)试题黑龙江省哈尔滨市第六中学2021-2022学年高三上学期期中考试数学(理)试题山西省长治市第二中学2018-2019高二下学期期中考试数学(文)试卷【市级联考】山东省潍坊市2019届高三下学期高考模拟(一模)考试数学(理科)试题【市级联考】山东省潍坊市2019届高三下学期高考模拟(一模)考试数学(文科)试题西藏拉萨市那曲第二高级中学2019-2020学年高二下学期期末考试数学(文)试题(已下线)2022年全国高考甲卷数学(文)试题变式题13-16题四川省内江市第六中学2022届高三下学期仿真考试数学(文科)试题四川省内江市第六中学2022届高三下学期仿真考试数学(理科)试题(已下线)2022年全国高考甲卷数学(文)试题变式题21-23题
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3 . 已知曲线C的极坐标方程为
,则该曲线的直角坐标方程为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cafb579dd4af3a4b9d38e747f5cd9e7.png)
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4 . 已知直角坐标系
中,已知直线
的参数方程为
(
为参数),以原点为极点,
轴的正半轴为极轴建立极坐标系,圆
的极坐标方程为
.
(1)写出圆
的直角坐标标准方程;
(2)设点
坐标为
,直线
与圆
交于点
,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/4200067df1a248fbc4ad719c99fc6a09.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/ca66a268d6f46e0e9d5d9151b785be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46a9318b83a0a52e7307812a2916ee8c.png)
(1)写出圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66a268d6f46e0e9d5d9151b785be60.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29c6e72db12d66771b7986f536d8a3aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca66a268d6f46e0e9d5d9151b785be60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9186007df079e19699f13a2c03ce100.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3b488de00602604b6e0d71a11661673.png)
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3卷引用:宁夏石嘴山市平罗中学2022届高三上学期期中考试数学(文)试题
5 . 在平面直角坐标系中,倾斜角为的直线
的参数方程为
(t为参数) .以坐标原点为极点,以x轴的正半轴为极轴,建立极坐标系,曲线C的极坐标方程是
.
(1)写出直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f79dc1f0d81fec84527c95246c0c6ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
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山西大学附属中学校2022届高三上学期期中数学(理)试题河南省新乡市辉县市第一高级中学2020-2021学年高二下学期第一次阶段性考试数学(文)试题河南省驻马店市环际大联考圆梦计划2021-2022学年高三阶段性考试(二)数学(文科)试题 环际大联考2021-2022学年高三上学期数学理科试题(二)江西省景德镇市第一中学2022届高三12月月考数学(理)试题河南省重点高中2021-2022学年高三上学期阶段性调研联考二理科数学试题【全国校级联考】2018年高考第二次适应与模拟数学(理)试题(已下线)考点57 极坐标与参数方程-备战2022年高考数学典型试题解读与变式河南省重点高中2021-2022学年高三上学期阶段性调研联考三理科数学试题
6 . 在平面直角坐标系
中,圆
的参数方程为
(
为参数),以
为极点,
轴的正半轴为极轴建立极坐标系,直线
的极坐标方程为
.
(1)求圆
的普通方程及直线
的直角坐标方程;
(2)若直线
与圆
的交点为
,
,与
轴的交点为
,求
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/ee9c899187299296505f0394e48e8edb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cfe3fd4d1b5a4e72ed2a5cae0d656b6.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fa1d29d610bf5f13e812124797f2cb79.png)
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6卷引用:陕西省西安市西北工业大学附属中学2021-2022学年高二上学期期中理科数学试题
7 . 如图所示,在平面直角坐标系
中,P是不在x轴上的一个动点,过点P可作抛物线
的两条切线,两切点A、B的连线与
垂直.设直线
与直线
与x轴的交点分别为Q、R.
![](https://img.xkw.com/dksih/QBM/2021/9/24/2815037014687744/2815804218966016/STEM/6577450b-894a-4048-a6d1-ee81f24bcd36.png?resizew=234)
(1)证明:R是一个定点;
(2)求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef49a3ca580a144cc65a609c167facc1.png)
![](https://img.xkw.com/dksih/QBM/2021/9/24/2815037014687744/2815804218966016/STEM/6577450b-894a-4048-a6d1-ee81f24bcd36.png?resizew=234)
(1)证明:R是一个定点;
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f50c707d0350c121c6a611db39a5e85d.png)
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3卷引用:江西省永新中学2021-2022学年高二上学期期中考试数学(理)试题
8 . 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
的普通方程与直线
的直角坐标方程;
(2)若直线
与曲线
交于
两点,点
,求
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/c6e242b9c010e06456ad4bc8a226dd46.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.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/0454f6f4366f3618dc1ec322ec78e50d.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/4754fbe523ca63eba3810a3f88f37df3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7f618c20607afa7c345e81d33878148.png)
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8卷引用:山西省运城市2022届高三上学期期中数学(文)试题
名校
9 . 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)求
的直角坐标方程;
(2)设点
的直角坐标为
,点
的直角坐标为
,动点
满足
,求点
的轨迹
的参数方程,并判断
与
的位置关系.
![](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/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/84a91cb8d2b89d64fa45c1f2df82e969.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)设点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76fcc6232011aa26602c18f33468a868.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbabae3549b4c67c5fcbd60e0a6d7519.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9cfe541293cab8a9a37d23b16ad7577e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
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2卷引用:山西省怀仁市第一中学2022届高三上学期期中数学(理)试题
名校
10 . 在平面直角坐标系
中,直线
,曲线
的参数方程为
(
为参数),以
为极点,
轴正半轴为极轴建立极坐标系.
(1)求曲线
和直线
的交点的极坐标;
(2)将曲线
的横坐标伸长到原来的2倍,纵坐标伸长到原来的
倍后得到曲线
,直线
与曲线
交于
,
两点,设点
,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75a1a6f778d0d852084358280f23b3a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0f0b3463a7e4c78dc8c16e06bbb9bf8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)将曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
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6卷引用:黑龙江省大庆铁人中学2021-2022学年高三上学期期中考试理科数学试题
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