在平面直角坐标系
中,点
,直线
轴,垂足为H,
,圆N过点O,与l的公共点的轨迹为
.
(1)求
的方程;
(2)过M的直线与
交于A,B两点,若
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65368687df4d7e3b9304e85ec4de354c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/165a501b2e6a3acc46212e59a166c053.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa47a3056e35be4dfced8149c0a417a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
(2)过M的直线与
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bcd8ee2d8367c167d6ae0abc741b6b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad9fdf8b318ddf822775a61ff26eb8a3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f4dfec890cdfdda355e19463f3be813.png)
21-22高二上·福建厦门·期末 查看更多[2]
更新时间:2022-02-22 00:45:16
|
相似题推荐
解答题-问答题
|
适中
(0.65)
真题
解题方法
【推荐1】已知函数
的图象与
轴分别相交于点
,
(
分别是与
轴正半轴同方向的单位向量),函数
.
(1)求
的值;
(2)当
满足
时,求函数
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a26cbfd351d1af2add79d6315ad31c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda0b2901ab7cccd83e408e381f2df70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4f03844a4d49eadf4157de7c7c339b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b0fffbec1fe851795dfdd448bf0d165.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ee74c6911296526d3f85b586d3d4161.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ceee0ff5c929d67de3c294e027c9087.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4acda6b6464db27e1ec18a1522406d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac93e34d8935fe1c54e5263d514f242a.png)
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【推荐2】如图所示,四边形
和
均是边长为
的正方形,在以
、
、
、
、
、
为起点和终点的向量中.
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/d8334353ebd44ac1ac83a269d008a72b.png)
(1)写出与
、
相等的向量;
(2)写出与
模相等的向量.
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/1cd7cf818d9349dc86a83634fd01a3ea.png)
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/a45c6276383d42b48200541981b932b4.png)
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/fe10c1b06d4a48ee8eefa8fd0e1d2e76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8860d9787671b53b1ab68b3d526f5ca.png)
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/d3e1e98c3474427c8c7408523326c760.png)
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/990d4c40575f4a23bd766bbe0412d2c5.png)
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/99ac0fde59ba4146a830d2d3b6e65dab.png)
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/140ca479d848487cbc1fd2f8908e023a.png)
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/ce83e22947c346ea9a0b17d3014104df.png)
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/d8334353ebd44ac1ac83a269d008a72b.png)
(1)写出与
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/883c4979cb3a409aaa01363fa310b7b9.png)
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/c5a9dcba19a94713adb2512cc63eecb1.png)
(2)写出与
![](https://img.xkw.com/dksih/QBM/2016/11/1/1826272361955328/1826272361996288/STEM/9215970e297446faac9b1dc9ecf2fce5.png)
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【推荐1】在直角坐标系
中,已知
,
,
,以
为直径的圆经过点
,记点
.
(1)求
点的轨迹方程
;
(2)给出如下定理:在一般情况下,若二次曲线的方程为:
(
,
,
不全为0),则经过该曲线上一点
的切线方程为:
.若过
(
)作(1)问曲线
的两条切线,切点分别为
,
,切线
,
分别交
轴于
,
两点,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ee31829d0d4d5f779a957d7df8058ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a525534689bd2701205d4ab17574c39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/858edb9a2fe9bab726479ec89a0f72c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a71b0db6cc0131e0e40f2ba38019458.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d259822ab64b8626f3893b8432673358.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(2)给出如下定理:在一般情况下,若二次曲线的方程为:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7885f39a8de2b188187691b3b316b5d9.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/abea45df5edd7146a27d51a9f3df13f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/947b751ba4fc819c4e3cdafe5aeff6d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ecde0d15b8ed3fb86737418e1376b47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3a316a2b1f46d69ed4257e37f2d97cc.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/bd33764ff4efddfe11a98a609753715c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41dd63924d64373f26d2515cb18f0b11.png)
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名校
解题方法
【推荐2】已知动点到直线
的距离比到点
的距离大
,点
的轨迹为曲线
,曲线
是中心在原点,以
为焦点的椭圆,且长轴长为
.
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)经过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ee4e884cf167006eb7399fd244572c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
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名校
解题方法
【推荐1】已知抛物线
:
焦点为
,过点
的直线与抛物线交于
,
两点,抛物线的准线与
轴交于点
.
(1)请写出一组满足
的点
,
的坐标;
(2)证明:
;
(3)若过点
的直线与抛物线交于
,
两点,点
,若
,求
的面积.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)请写出一组满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e411acfa75f9724d5aadb0390eff0d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8e411acfa75f9724d5aadb0390eff0d.png)
(3)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e76cb7c345f355208c133c1adf592ad8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7c314398e26ffc7164b82946eeb4273.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3953cec61ac602ce5eb59b7912352179.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/082bee524dae2a21dda62ee0597aba06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5422237e66dda339aa0a1e1f7f503ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e495b8ed25b6062c6fc56683a5c866.png)
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【推荐2】已知抛物线
的焦点
为圆
的圆心,
为坐标原点,点
为抛物线
上任意一点,过点
作
轴的平行线交抛物线的准线于点
,直线
交抛物线于点
.
(1)求抛物线
的方程;
(2)若
、
、
三个点满足
,求直线
的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/37ab7408ffcefcb8e5e1ad4a9c58f1b1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e383fcc122f267043fbafe0972bfb900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.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/ac047e91852b91af639feec23a9598b2.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/abd13974aebe38eb2a1d744a01ea5aa5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
(1)求抛物线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba402004039d7f73144e6782512f9d5a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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解题方法
【推荐1】(1)已知椭圆经过点
,离心率为
,焦点在
轴上,求椭圆的标准方程;
(2)已知抛物线的顶点在坐标原点,焦点坐标为
,一条斜率为1的直线
经过抛物线的焦点
,且与抛物线相交于
,
两点,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/521d2cbdff8483ebba708857163ef1d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(2)已知抛物线的顶点在坐标原点,焦点坐标为
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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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解题方法
【推荐2】已知椭圆
:
过点
且与抛物线
:
有一个公共的焦点
.
(1)求椭圆
与抛物线
的方程;
(2)过点
的直线
与椭圆
交于
,
两点,与抛物线
交于
,
两点.是否存在这样的直线
,使得
?若存在,求出直线
的方程,若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b5de158b700b264e9c03617445ce900.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fc58c62444bf42a25289c45425a00f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/092fd1b1d33979818300cd2e3699bff7.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23f3ffe7abc59e2f65d827c8eab8d36a.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1241216f3c1cb5e73043dd1037f556d.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/23f3ffe7abc59e2f65d827c8eab8d36a.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72b51657c03c718aaa8b6d32714eb81a.png)
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