解题方法
1 . 设
为抛物线
的焦点,则点
的坐标为__________ ;若抛物线上一点
满足
,那么点
的横坐标为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ff29e80ba6c16e1177e7873a396a7a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
您最近一年使用:0次
2 . 已知点A为抛物线
上一点(点A在第一象限),点F为抛物线的焦点,准线为l,线段AF的中垂线交准线l于点D,交x轴于点E(D、E在AF的两侧),四边形
为菱形,若点P、Q分别在边DA、EA上,
,
,若
则
的最小值为______ ,
的最小值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e08c14e87a2bcf7090eab2fea73667d2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d1074ae4cfaa6c7ab2eabe04bf97513.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7112901e241c4db02f538795d1b79d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1b8b5ad14031c353573710741dc68549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bdbdec26c6aa6565eef79515056a036.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41ef5824baf830ec04377a49df11513c.png)
您最近一年使用:0次
3 . 已知
,
是抛物线
上两点,焦点为
,抛物线上的点
到坐标原点的距离等于该点到准线的距离,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
________ ;若
,则直线
恒过定点________ .
![](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/7e6c830bfa9a1b979a1a9665166424bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e61c02f20cd4f78a77506ee3b5510567.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3825ccc273ef9a672a606432d165b866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
您最近一年使用:0次
23-24高三上·山东德州·期末
解题方法
4 . 若直线
过抛物线
的焦点
且与抛物线交于
两点,
的中垂线交
轴于点
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e48a2eafd3158d74d0824c6ec1c640.png)
____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/65e48a2eafd3158d74d0824c6ec1c640.png)
您最近一年使用:0次
5 . 已知点
在抛物线
上,且点
与焦点的距离为
,则
的值为________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ddf1a6605e782f22ef670c448ed9e210.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7db21809443e545361fa30d55dc9a674.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
6 . 设点F为抛物线C:
的焦点,点A在抛物线C上,点
,若
,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3bdf215e094e894f651c129b89be326.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/103719a03778afac5607b7b2bc325ec1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
您最近一年使用:0次
7 . 已知抛物线![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
的焦点为
,准线为
,经过点
且斜率为
的直线与抛物线交于点
(
在
轴上方),过
作
,垂足为
,则
到直线
的距离为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b072ff6d1b83232bebd7d4709ffba4ef.png)
![](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/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b33a3f384acb53b5a21521a77ac0b1f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/360496a4f5cc8a5faca5e089ae4f9531.png)
您最近一年使用:0次
解题方法
8 . 已知椭圆
的左、右焦点分别为
,
,抛物线
的焦点为
,设两曲线的其中一个交点为
,且
,则椭圆的离心率为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5076829e649b3f3866d4a7e07a5713e4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/697c20fca284394bf5d5b9e5f6d952e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7089148c36cb3c39af71de653756396a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d5cfd45365f616041916b2821663b297.png)
您最近一年使用:0次
2024-01-14更新
|
340次组卷
|
6卷引用:江西省上饶市广丰区大千艺术学校2023-2024学年高二上学期期末数学试题
江西省上饶市广丰区大千艺术学校2023-2024学年高二上学期期末数学试题【全国百强校】河北省武邑中学2018-2019学年高二12月月考数学(理)试题江西省靖安中学2019-2020学年高二下学期第一次月考数学(文)试题(已下线)专题9-1 圆锥小题压轴九类-2022年高考数学毕业班二轮热点题型归纳与变式演练(全国通用)(已下线)2024南通名师高考原创卷(六)(已下线)考点14 余弦定理及应用 --2024届高考数学考点总动员【讲】
名校
解题方法
9 . 已知抛物线
的焦点为
,
,点P为第一象限内的点,且在抛物线C上,则
的最小值为____________
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/020f93706a12a66231bdaadb40ae221e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcfd2a3a4afb13aaa6b7f5ea2b4a3a9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6bf3b82ac1583845f084764ff7c85a1.png)
您最近一年使用:0次
解题方法
10 . 已知抛物线
的焦点为
是抛物线上两点,若
8,则
的中点到
轴距离的最小值为_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0d0a522b36799e4bcc6e3645db4d4a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88bee8e70f1fab639be1636c7bce0477.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
您最近一年使用:0次
2024-01-12更新
|
192次组卷
|
2卷引用:云南省大理白族自治州2023-2024学年高二上学期期末教学质量监测数学试题