1 . 设圆
的圆心为
,过点
且与
轴不重合的直线交圆
于
、
两点,过
作
的平行线交
于点
.
(1)证明
为定值,并写出点
的轨迹
的方程;
(2)已知点
,
,过点
的直线
与曲线
交于
、
两点.记
与
的面积分别为
和
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/714df7f0c804617e1c8832d2e91b496a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/768032fa821ab84b467b237fbfbfd5a3.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/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/438f34bc8b04e8c494b91306ac6fe352.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)证明
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8448ec5c7681295a1847c0479a9b3187.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
(2)已知点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b5a63e00afba3220756e65d76e3b25e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2767866dc6472299128b8bd074e384fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4d59320907a5c72e1337585501cb68f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.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/ab2a2834d80ff574e79eae8ca8d4e94f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a17f475e19e55ef3b70ed8cf2daae1d.png)
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2 . 四棱锥
中,
,
,
,平面
平面
,点
为
的中点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/7bf5b00d-d198-46bc-882f-4fe6afa1ddec.png?resizew=177)
(1)求证:向量
、
、
共面;
(2)若
,求二面角
的余弦值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c753cb1eb73fd8d136d00462970797.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f571396be1aa4a8914a66f7d7abd6381.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ff4469fa799e785c052937a35cfd79.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1134c8e3440abb6cd385af2c169037fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3abb27f8d654064a92f9d7a11e586ab5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411b38a18046fea8e9fab1f9f9b80a5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0ed1ec316bc54c37c4286c208f55667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e6e490f703eb6c9bb1278c78ebc2d661.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/11/28/7bf5b00d-d198-46bc-882f-4fe6afa1ddec.png?resizew=177)
(1)求证:向量
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51d4de4a61d36da20d9bad79db1d5400.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09434aab8601a5936924509a009c7b48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/305d5f36a9fdbc840161b36563923195.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b62ce0cbffa4758c7a0e6fb7ca4d24e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52c915e0c39a3ead9e96649ef85c47de.png)
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名校
解题方法
3 . 函数
的图象恒过定点A,若点A在双曲线
上,则
的最大值为 ( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89776d6d576971517c352d15c478d2b7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/709c53baa4ac9899cfff5ff133747e8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72850427e83ff19a24305783e080b280.png)
A.6 | B.4 | C.2 | D.1 |
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2021-05-28更新
|
817次组卷
|
8卷引用:四川省德阳市成都师范学院德阳高级中学2022-2023学年高三上学期期中数学试题
四川省德阳市成都师范学院德阳高级中学2022-2023学年高三上学期期中数学试题四川省雅安市2021届高三三模数学(理)试题四川省雅安市2021届高三三模数学(文)试题(已下线)2.3 双曲线(基础练)-2021-2022学年高二数学同步训练精选新题汇编(人教A版选修2-1)(已下线)考点20 基本不等式-备战2022年高考数学(理)一轮复习考点微专题(已下线)3.7 指数运算及指数函数(精讲)-【一隅三反】2022年高考数学一轮复习(新高考地区专用)(已下线)专题14 圆锥曲线常考题型02——圆锥曲线中的范围、最值问题 【重难点突破】2021-2022学年高二数学上册常考题专练(人教A版2019选择性必修第一册)四川省绵阳东辰国际学校2020-2021学年高三下学期三诊数学(文)试题
解题方法
4 . 已知点
是双曲线
右支上一点,
、
分别是双曲线的左、右焦点,
为
的内心,
、
、
的面积分别为
、
、
,若
,则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3040b6c904477030ecf8ba20b2b18759.png)
![](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/e105760638b22b26ff8bec4354255e4c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1187b2ad582fdddcab8740e9a4b8dce.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8da9cf6815e7009a0e242b8f1f985f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4066a709cfc78a4d56145c9970b7b852.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e0bd63f55069a3bc870915010b39225.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6899bf9cadae2ccdb14cbc87d4f280ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/88c54e773d53cc67a77867e01babee48.png)
A.2 | B.![]() | C.![]() | D.4 |
您最近一年使用:0次
名校
解题方法
5 . 设
、
为椭圆
上关于原点的两个对称点,右焦点为
,若
,
,则该椭圆离心率
的取值范围为( )
![](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/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4b6fe0f38ab3095ac6575faa02914b8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61ca67dbe64c177d4f4a9ec1f473f387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/217a08afe971e8d34851f6e7a9d0c15f.png)
![](https://img.xkw.com/dksih/QBM/2021/4/6/2694147688079360/2803165930708992/STEM/b496069832db419c9c2024f5b6788366.png?resizew=7)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021-09-13更新
|
799次组卷
|
5卷引用:四川省德阳市第五中学2022-2023学年高二上学期10月月考数学(文)试题
四川省德阳市第五中学2022-2023学年高二上学期10月月考数学(文)试题四川省德阳市第五中学2022-2023学年高二上学期10月月考数学(理)试题浙江省温州市瑞安中学2020-2021学年高二上学期期末数学试题(已下线)第3.2讲 椭圆的简单几何性质-2021-2022学年高二数学链接教材精准变式练(人教A版2019选择性必修第一册)(已下线)期末模拟题(三)-2021-2022学年高二数学同步单元AB卷 (人教A版2019选择性必修第一册+第二册,浙江专用)
名校
解题方法
6 . 如图,已知双曲线
的左、右焦点分别为
,
,过右焦点作平行于一条渐近线的直线交双曲线于点
,若
的内切圆半径为
,则双曲线的离心率为( )
![](https://img.xkw.com/dksih/QBM/2021/4/12/2698439282081792/2701717195366400/STEM/cf18e6f8-6392-4a24-befd-9a609ffbf6ae.png?resizew=222)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/20688eb11daa32dca8c7544ae3b2cd5c.png)
![](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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2cfd997d3b66a3b8f7731b26f0ab0c8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb668fbb25c4bb06035de989ee4c56c3.png)
![](https://img.xkw.com/dksih/QBM/2021/4/12/2698439282081792/2701717195366400/STEM/cf18e6f8-6392-4a24-befd-9a609ffbf6ae.png?resizew=222)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2021-04-17更新
|
2331次组卷
|
7卷引用:四川省德阳市德阳中学校2021-2022学年高三上学期11月月考数学(理)试题
四川省德阳市德阳中学校2021-2022学年高三上学期11月月考数学(理)试题湖南师范大学附属中学2021届高三下学期月考(七)数学试题浙江省宁波市镇海中学2021届高三下学期5月模拟数学试题全国Ⅲ卷2021届高三高考模拟卷数学(理)试题(已下线)专题25 圆锥曲线压轴小题必刷100题-【千题百练】2022年新高考数学高频考点+题型专项千题百练(新高考适用)四川省遂宁市射洪市柳树中学2022-2023学年高三下学期3月月考数学试题(已下线)江西省九所重点中学2023届高三第二次联考联合考试数学(文)试题变式题11-15
名校
解题方法
7 . 双曲线
的右焦点为
,直线
过点
且与双曲线
右支交于
两点.若弦长
,且
,则该双曲线的离心率为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a2cfa22139b3e9c9a73500e1ba19f52.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.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/9584d58881aebac81c04946b34f3ceb6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2f8678e119178ea230594101eb6b892f.png)
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2021-02-07更新
|
330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
名校
8 . 已知
、
是椭圆
的两个焦点,若椭圆C上的点P满足∠F1PF2=90°,则点P的个数为( )
![](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/0b3cfb07fcf2c1bf055d517631d80b7c.png)
A.0个 | B.1个 | C.2个 | D.4个 |
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2021-04-19更新
|
633次组卷
|
3卷引用:四川省德阳市第五中学2022-2023学年高二上学期10月月考数学(文)试题
解题方法
9 . 已知双曲线
与圆
交于点
,圆在点
处的切线恰好过双曲线的左焦点
,则双曲线的离心率为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01ad2427d3022dfb4758b839b04d01fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd243fab0af865af67a2ab817e909cf5.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-09-17更新
|
358次组卷
|
2卷引用:四川省德阳市2020届高三高考数学(文科)三诊试题
名校
10 . 抛物线
的焦点到其准线的距离是( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97b35985d5c22a637a518fa1e87f1d20.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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2021-01-04更新
|
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|
4卷引用:四川省德阳市第五中学2022-2023学年高二上学期10月月考数学(文)试题