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1 . 若椭圆的参数方程为
(
为参数),则椭圆的离心率为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ca6310e21d5665e433ab9a13fbea38c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
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2 . 参数方程![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc15c2afe4d93fdf31637732fa1aab94.png)
为参数
表示的曲线是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc15c2afe4d93fdf31637732fa1aab94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/104c87717fcdb3b4513c4ea57bd03bdb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
A.直线 | B.圆 | C.椭圆 | D.双曲线 |
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2024-02-26更新
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66次组卷
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2卷引用:陕西省咸阳市实验中学2021-2022学年高二下学期阶段性检测(一)数学(文)试题
3 . 在直角坐标系
中,以原点
为极点,
轴的正半轴为极轴,建立极坐标系,两种坐标系取相同的长度单位.圆
以极坐标系中的点
为圆心,
为半径.直线
的参数方程是
(
为参数).
(1)求圆
的极坐标方程;
(2)判断直线
与圆
的位置关系.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a82b85d3f59cf6c73fd6f31cb8bd097.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/8e37483980dc3b2dc19930379db98cb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95c3cf576fe468e4ed224d4be5871192.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
(1)求圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)判断直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2024-02-21更新
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2卷引用:中原名校2022-2023学年高三上学期质量考评三理数试题
4 . 在平面直角坐标系
中,曲线
的参数方程为
为参数
,在以坐标原点为极点,
轴正半轴为极轴的极坐标系中,直线
,直线
.
(1)求曲线
的极坐标方程;
(2)求直线
截曲线
所得弦长之和的最大值.
![](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/46b3dc4bd3759173f0595e3a06deb7fb.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/1d0cf0c0ed5907fe6294df7a25957f70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef89f6fb007998cfe99a0fa8c2b499f.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
(2)求直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44bdbbfae10ee2d7c2ddf447e481af9e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
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2024-02-05更新
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150次组卷
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2卷引用:1号卷·2022届全国高考最新原创冲刺试卷(一)文科数学试题
名校
5 . 在平面直角坐标系
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,圆心为
的圆
过极点.
(1)求圆
的极坐标方程;
(2)若直线
与圆
恰好相切,求
的正切值.
![](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/f2466202b260e7343cea0d21f373432e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76c516619a5b3c6676e6734efa754e5d.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/369d9b11fceda9728f29b186111ac2b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求圆
![](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/e170f206fdbbd834aad7580c727e2cc6.png)
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解题方法
6 . 在平面直角坐标系
中,曲线
的参数方程为![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727c7f5a851777ab9b011074c2d01f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc42ef1400aac5dcd1ca7a3b53ab5d8.png)
(1)求曲线
的直角坐标方程;
(2)已知点
,直线
的参数方程为
(
为参数,
),且直线
与曲线
交于A、
两点,求
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7795aec93c2c7ac2fd93e6747ca6516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/727c7f5a851777ab9b011074c2d01f07.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc42ef1400aac5dcd1ca7a3b53ab5d8.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/92a0d4c22734cac795de1e5c5fbefa87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d35795b8261773ec0f2e3c6b02bf11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c51159984b2cb00f30b3986315019623.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/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97421de7f49e4bc118f26f2bbe334826.png)
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2023-09-09更新
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401次组卷
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5卷引用:江西省临川第一中学2023届高三上学期第一次月考数学(理)试题
7 . 在直角坐标系xOy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,曲线E的极坐标方程为
.
(1)求曲线C的普通方程和曲线E的直角坐标方程;
(2)若M是曲线C上一点,N是曲线E上一点,求M、N这两点间的最小距离.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/939be0f19db0999b463b695953552497.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e170f206fdbbd834aad7580c727e2cc6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60b3603974f960c63338b312e6fa520e.png)
(1)求曲线C的普通方程和曲线E的直角坐标方程;
(2)若M是曲线C上一点,N是曲线E上一点,求M、N这两点间的最小距离.
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解题方法
8 . 椭圆
的参数方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6205da5e1d2730ee0b3de8bca3e29f5e.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 设x,
,则“
”是“
,
”的( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95cccdff49c3efe6e7a7dbbf69db9319.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c82e7d9f4f7ace849e09e9adcb786b7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ae470980d6e3b53c65b9d42d1f011c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05f56a6a47f30708a1c6c789b76eeda.png)
A.充分而不必要条件 | B.必要而不充分条件 |
C.充分必要条件 | D.既不充分也不必要条件 |
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2023-08-05更新
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345次组卷
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2卷引用:北京市海淀区清华大学附属中学2022-2023学年高二上学期期中考试数学试题
名校
解题方法
10 . 方程
(
为参数)对应的曲线轨迹为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3fd145533592a87024367fd06e9675b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
A.圆 | B.椭圆 | C.双曲线 | D.抛物线 |
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2023-12-10更新
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204次组卷
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2卷引用:四川省成都市石室中学高2022届高三上学期期末数学(文)试题