2022高三·全国·专题练习
1 . 已知椭圆
的上顶点为
,右焦点为
,△
为等腰直角三角形
为坐标原点),抛物线
的焦点恰好是该椭圆的右顶点.
(1)求椭圆
的方程;
(2)若点
,
分别是椭圆的下顶点和上顶点,点
是椭圆上异与
,
的点,求证:直线
和直线
的斜率之积为定值.
(3)已知圆
的切线
与椭圆相交于
,
两点,那么以
为直径的圆是否经过定点?如果是,求出定点的坐标;如果不是,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad523e69a1bf925e73a22900b9855df2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a52a81bff863aadc324c1132d7405a85.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd109d3cea698760b0d5edb65bd6f241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/839b8de04116aaaed4f4cca2e107cd36.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97c01fdc7bc471af0b264a04aef0823e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43a71fc9c0068109dad1382354570665.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24006d28116bc097933cc90bcc0ea69f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2451835b9ad821bc17a317bc0189a38.png)
(3)已知圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b75065f2460b107f58d47b41a277b5a.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/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d78abbad68bbbf12af10cd40ef4c353.png)
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解题方法
2 . 已知抛物线的顶点为原点,焦点
在
轴正半轴上,
到直线
的距离为
,点
,不过点
的直线l与抛物线交于两点
,且
.
(1)求抛物线方程及抛物线的准线方程;
(2)求证:直线
过定点,并求该定点坐标.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/276e0fc0eb117d9504dcee30c86650c2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d59ab85c075a09d55d69e159e4abb268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/443db6b71418d897fdd83279aa8d3ca4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37baf35f7c7f69f5c71b77b7f8a95708.png)
(1)求抛物线方程及抛物线的准线方程;
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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3 . 已知椭圆
:
,以椭圆
的右焦点为焦点的抛物线
的顶点为原点,点
是抛物线
的准线上任意一点,过点
作抛物线
的两条切线
、
,其中
、
为切点,设直线
,
的斜率分别为
,
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/e017ba5c-09bb-48e8-b3cb-0eaa986ede2c.png?resizew=207)
(1)求抛物线
的方程及
的值;
(2)求证:直线
过定点,并求出这个定点的坐标;
(3)若直线
交椭圆
于
、
两点,
分别是
、
的面积,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f4b244b3b0799cfb1994364036eb1.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6defc43285a40f7ccb74c1cc04265eba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/423b7ae39db552e60ee8b1d27312306f.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/14/e017ba5c-09bb-48e8-b3cb-0eaa986ede2c.png?resizew=207)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4757181824e15e0f21e5bdd55448783.png)
(2)求证:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(3)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76b982b4ed3b75609bda6af3914986d6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2205cffebf8c4d5f81d15ed7b85c8936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/177678001b2ccde1db8f57fa5e017002.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/235f0a6fb218d28383e6f27f2df1f50f.png)
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2022-11-24更新
|
560次组卷
|
3卷引用:四川省德阳市德阳市第五中学2022-2023学年高二上学期期中数学(理)试题
四川省德阳市德阳市第五中学2022-2023学年高二上学期期中数学(理)试题四川省德阳市德阳市第五中学2022-2023学年高二上学期期中数学(文)试题(已下线)江苏省苏锡常镇四市2023届高三下学期3月教学情况调研(一)数学试题变式题17-22
4 . 抛物线C:
的焦点为F,过x轴上一点(其点在F右侧)的直线l交C于A,B两点,且C在A,B两点处的切线交于点P.
(1)若l:
,
,求C的方程;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
(1)若l:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1584d07b1e2ddc64349f0f5940f3a3e.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2276430a1057ad727c357b7ffca68086.png)
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解题方法
5 . 若抛物线
:
上的一点
到它的焦点的距离为
.
(1)求C的标准方程;
(2)若过点
的直线
与抛物线C相交于A,B两点.求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/62c2f156b05838deaae6a35acad242af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/825c87590acf5487a069aac52749bb56.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/533a7b702ada1dd80123e4041271d521.png)
(1)求C的标准方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a291e0d0e2f620a15826a1aa3c04bc37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01a27caed03a663d3b47eaa66ea25a72.png)
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解题方法
6 . 已知抛物线
的顶点为坐标原点,焦点在
轴上,点
关于
轴的对称点
在抛物线
上.
(1)求抛物线
的方程;
(2)
、
是抛物线
上异于点
的两个动点,记直线
和直线
的斜率分别为
、
,若
,求证:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fcf9bfbf771cb6118f8e631724314e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b62387eda64f11e70872537e4f7db76e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/47ffb694021b52653de5141ae27ba6d0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0914b68f106a912420705b2f3928ca42.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1da9dcf6c319174c9ea2b1ceaed1649a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce1132157a33c82610c2d5035493d024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0fc5c19ac440746be97d8b46af5d288a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2562424a83aae7e4b3f8adf90307961a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2536b6829af742213a7edd36c6fc8f87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3410cd3e5a2b7c7cbaa20812d7f45762.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解题方法
7 . 已知抛物线
:
(
)的焦点为
,点
在
上,且
.
(1)求
的方程;
(2)若不过点
的直线
与
相交于
两点,且直线
,
的斜率之积为1,证明:直线
过定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b35f0b940c8422ef47edc3b7ce55e47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dece47c23e53eca430269ad7b12e0891.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4af1560bfd68fa9e4e82093d327ab7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff29e80ba6c16e1177e7873a396a7a6.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若不过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
8 . 已知抛物线
上的点
到其焦点的距离为
.
(1)求
和
的值;
(2)若直线
交抛物线
于
、
两点,线段
的垂直平分线交抛物线
于
、
两点,求证:
、
、
、
四点共圆.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/365c238724dea5c24c3e326678c9ed54.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90ce81c2674a74d4704f9ce387ef954f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d00a5df9d281dd4e1e45bf6a4d6fb27.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
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2022-09-01更新
|
1709次组卷
|
11卷引用:第46讲 解析几何中的四点共圆问题-2022年新高考数学二轮专题突破精练
(已下线)第46讲 解析几何中的四点共圆问题-2022年新高考数学二轮专题突破精练2023版 湘教版(2019) 选修第一册 过关斩将 第3章 综合拔高练(已下线)专题7 解决曲线的几何性质的运算(提升版)四川省南充市阆中中学校2022-2023学年高三上学期10月月考数学(文)试题(已下线)考向36 直线与圆锥曲线最全归纳(十六大经典题型)-3(已下线)专题38 圆锥曲线中的圆问题-2四川省泸州市2021届高三三模数学(文)试题(已下线)第五篇 向量与几何 专题10 圆锥曲线中的四点共圆问题 微点2 圆锥曲线中的四点共圆问题(二)新疆维吾尔自治区乌鲁木齐市第十二中学2024届高三上学期9月月考数学(文)试题(已下线)重难点突破15 圆锥曲线中的圆问题(四大题型)(已下线)专题03 圆锥曲线题型全归纳(九大考点)-【寒假自学课】2024年高二数学寒假提升学与练(人教A版2019)
9 . 如图,已知点
是焦点为
的抛物线
:
上一点,
,
是抛物线
上异于
的两点,且直线
,
的倾斜角互补,若直线
的斜率为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/38675591-810e-4a8d-a961-fd6e89ba6ea6.png?resizew=198)
(1)证明:直线
的斜率为定值;
(2)在
中,记
,
,求
最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2007972af3341f27fbc32ce62dfce5e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.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/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2781714853ddd3675560abfaa967242.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/2/38675591-810e-4a8d-a961-fd6e89ba6ea6.png?resizew=198)
(1)证明:直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
(2)在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/004104bafb5f30338123d4ea2b7fedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cd0e6d684f1983034c305af2f24cc7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/06433d26939d333c62823d6113f98177.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d94ff61f05b1a88f9f9f785441bfcc92.png)
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2022-11-01更新
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991次组卷
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4卷引用:广西南宁市第三十六中学2023届高三上学期数学(文)第三次检测试题
名校
解题方法
10 . 设点
,动圆P经过点F且和直线
相切,记动圆的圆心P的轨迹为曲线C.
(1)求曲线C的方程;
(2)点
,过F的直线交C于
两点,连接
,与C的另一个交点分别为
,记直线
的斜率分别为
.求证:
为定值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce88a93d98e20ef97c0b8bb67af3502b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e1c84057882768f20a01365c81b6760.png)
(1)求曲线C的方程;
(2)点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/470d39b666e5101a7e6349274d04f172.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3decff252399c7e952cfe5ead2294dd5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76e6734f82473aa9fd35c208d11ee4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67351fe10fcfc3f9072eec4c60bfaaa5.png)
您最近一年使用:0次
2022-11-10更新
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781次组卷
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2卷引用:福建省厦门双十中学2022-2023学年高二上学期期中考试数学试题