名校
解题方法
1 . 已知以
、
为左、右焦点的椭圆
的左顶点为A,上顶点为
,点
,
是椭圆上任意两点,若
的面积最大值为
,则
的最小值为__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b24214f111f7c6d2b64e53ad970438b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.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/6a11cb104b04c4e6a1be700e81da279a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1edc33277bf11da7b67816efcdb7286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ad115a848affb375ecd51f3f7765bfe.png)
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2 . 设抛物线
的焦点为
,准线为
,过点
的直线交抛物线
于
,
两点,交
于点
,且
,则
( )
![](https://img.xkw.com/dksih/QBM/2021/11/10/2848357142929408/2916058632544256/STEM/a8841c11-48d8-4944-b7cf-52bf5266f25c.png?resizew=186)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc7ad3432ac96b0a38beaa7f2edc3499.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/c5db41a1f31d6baee7c69990811edb9f.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/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72431be5febc90deb2f78ebd72fbc488.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6e3d627f5fbd04271389d503942d233.png)
![](https://img.xkw.com/dksih/QBM/2021/11/10/2848357142929408/2916058632544256/STEM/a8841c11-48d8-4944-b7cf-52bf5266f25c.png?resizew=186)
A.![]() | B.![]() | C.![]() | D.![]() |
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2022-02-14更新
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3卷引用:四川省绵阳市绵阳南山中学2021-2022学年高二上学期期中数学(理)试题
名校
解题方法
3 . 抛物线
的焦点与双曲线
的右焦点
重合,
是双曲线的左焦点,两曲线交于
、
两点,若
,则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/745de5ef1fd897d16e37464172d5e8c9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94c3c638b0b354634af8a7ade885905b.png)
A.![]() | B.![]() | C.![]() | D.![]() |
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解题方法
4 . 抛物线
的焦点为F,点P为抛物线上的动点,点
为其准线上的动点,当
为等边三角形时,则
的外接圆的方程为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3577bf250e9110428ff34f518fbd9f2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/130b889b67b51b3ecc5d855ab53987c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/130b889b67b51b3ecc5d855ab53987c4.png)
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2022-02-13更新
|
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3卷引用:四川省成都市石室中学2021-2022学年高三上学期专家联测卷(二)数学(文)试题
四川省成都市石室中学2021-2022学年高三上学期专家联测卷(二)数学(文)试题2015届山东省文登市高三第二次统考理科数学试卷(已下线)解密17 圆与方程(分层训练)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(全国通用)
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5 . 如图,已知正方体
中,F为线段
的中点,E为线段
上的动点,则下列四个结论:①存在点E,使
;②存在点E,使
平面
;③EF与
所成的角不可能等于60°;④三棱锥
的体积随动点E的变化而变化.其中正确结论的个数是( )
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/c6650fb8-4f2f-4733-b90d-6e08b932e784.png?resizew=180)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e09725691ee7851f54c0dee86b2bf55.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0d8772aa893a9c1d40f714cb25701701.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f1f229274a6e17977cc047814212589.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f11a73f426eca4c7e624e91d80f31e2b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a5f445af1ae136773cb338920552ff2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82c73b73825032f9c9721e5ba1efc6c0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83c09eec4e14a861af83d7828797d176.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4a120ccde98d6208c5b02bf92e30545.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/1/31/c6650fb8-4f2f-4733-b90d-6e08b932e784.png?resizew=180)
A.4 | B.3 | C.2 | D.1 |
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2022-02-13更新
|
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4卷引用:四川省成都市石室中学2021-2022学年高三上学期专家联测卷(二)数学(文)试题
四川省成都市石室中学2021-2022学年高三上学期专家联测卷(二)数学(文)试题(已下线)解密15 空间向量与立体几何 (分层训练)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(全国通用)广西容县高级中学2021-2022学年高二下学期开学考试数学(理)试题(已下线)1.4空间向量的应用B卷
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6 . 若圆
:
的圆心为双曲线
:
的一个焦点,且圆
经过
的另一个焦点,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2236f581b11a0bb63addd062529acee8.png)
____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2060f4b4603632d6a0222d5af62d9c16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1d72b80c48444c5392be8bd9bf842c.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/2236f581b11a0bb63addd062529acee8.png)
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解题方法
7 . 已知长度为4的线段AB的两个端点分别在两条直线
上运动,线段AB的中点为M.
(1)求点M的轨迹C的方程;
(2)若过点
作圆
(
)的两条切线,与轨迹C分别交于E,F(异于D点)两点,若
,求r的值及直线EF的方程.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/060e229870f126b31e37965bc0c58667.png)
(1)求点M的轨迹C的方程;
(2)若过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fff464cf0c5fb5de42b68cf0eee89538.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4e712471cc750991a28af403cee44e2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45ba6b6aa6c3f9faba6b03bc193a6e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f146c3eb6b49479700fb85037eef15f.png)
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名校
解题方法
8 . 如图,在四棱锥
中,四边形ABCD是边长为2的菱形,
,
,且
.
![](https://img.xkw.com/dksih/QBM/2021/12/20/2876654261895168/2915527944527872/STEM/a3ecd4b07e444e478de6b3e7ac2693e5.png?resizew=256)
(1)证明:平面
平面ABCD;
(2)若
,且线段SD上一点E满足
平面AEC,求AE与平面SAB所成角的正弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/faeb97acf19bd3b2c6c77c2814df4d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e075468e7fb0bf30229aec01a7205977.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9be181a161e66fb96cbff80fd23c1e95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/672ec1169bab663781450d42f39ffe6f.png)
![](https://img.xkw.com/dksih/QBM/2021/12/20/2876654261895168/2915527944527872/STEM/a3ecd4b07e444e478de6b3e7ac2693e5.png?resizew=256)
(1)证明:平面
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/877582b5387278008d14fe5932622fe7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7fee21c4658f6139d9eec1db0096922f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad3990084d5e0aa213dc6f069b630822.png)
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解题方法
9 . 已知双曲线
的左、右焦点分别为
,
,过
的直线l交双曲线C的渐近线于A,B两点,若
,
(
表示
的面积),则双曲线C的离心率的值为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c5c2e64358e0ec7aa142c336d970306.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/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36ed840542d3beb129da3c00b6a05e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e33bb89bb6684b60dc864f4a1d60cfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8690b5c3fa9fbabba6649c30fa66648d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
A.![]() | B.![]() | C.![]() | D.![]() ![]() |
您最近一年使用:0次
2022-02-13更新
|
4203次组卷
|
5卷引用:四川省成都市石室中学2021-2022学年高三上学期一诊考试数学(理)试题
四川省成都市石室中学2021-2022学年高三上学期一诊考试数学(理)试题(已下线)解密19 双曲线 (分层训练)-【高频考点解密】2022年高考数学二轮复习讲义+分层训练(全国通用)广西2022届高三4月大联考数学(理)试题(已下线)专题10 解析几何1(已下线)专题28 轻松搞定圆锥曲线离心率十九大模型-3
名校
解题方法
10 . 已知椭圆C:
的右焦点为
,O为坐标原点,M为y轴上一点,点A是直线
与椭圆C的一个交点,且
,则椭圆C的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd54b9df3402ad91e2d34c40efe0c7a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/183b6a0cef4256c9696a5bca31053da5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac80fa10b0e8d0ebcb30013ef00f1165.png)
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2022-01-30更新
|
309次组卷
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2卷引用:四川省成都外国语学校2021-2022学年高二上学期12月月考数学(理)试题