1 . 已知
,
是双曲线C:
的左、右焦点,若点
为C上的一点,且
,
的面积为
,双曲线的离心率为
.
(1)求曲线C的方程;
(2)过曲线C左焦点
的两条相互垂直的直线分别交双曲线C于
和
,
分别是
的中点,求证:直线
过定点,并求出该定点的坐标.
![](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/3040b6c904477030ecf8ba20b2b18759.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2427943a38dcd93c9ec9b735ffc9fe5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d776753746914c2410a3946c357f35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ca7d1107389675d32b56ec097464c14.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/047616f1d1d39bf6c3cd07cf63ef5b80.png)
(1)求曲线C的方程;
(2)过曲线C左焦点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91e1e4115d78e625e9e0f47cdade3286.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7789a500686c7a73770404ead6af0590.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/764c199d659322854377a92fee97642d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
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2023-08-24更新
|
939次组卷
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3卷引用:贵州省天柱民族中学2024届高三上学期第一次月考数学试题
2 . 函数
.
(1)求函数
的单调区间;
(2)当
时,若
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a14115fa8fc7a3e413a6cfc01d8408b.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d1540b6b10f07a867618a1eec02e2a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63f78ae07b1452e4f9dd8ba93db61d17.png)
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名校
3 . 已知函数
.令
.
(1)讨论函数
的单调区间;
(2)若函数
的两个极值点为
,且
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb1441380e1efb777f88122b6c6ef98d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3e163952c6e9bf7149963ff75b43962.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/46be55c8f2760d6db125f46691a3de48.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcafc95a0527841c29a58d4f7d85e232.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdd4e9d20a6bbd3fceabf2e7b3f11eec.png)
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4 . 已知椭圆C:
的离心率为
,焦距为
,A,B分别为椭圆C的上、下顶点,点M(t,2)(t≠0).
(1)求椭圆C的方程;
(2)若直线MA,MB与椭圆C的另一交点分别为P,Q,证明PQ过定点
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e43c3621b12e03422ae9868c78e3327.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ca9c6fe12d3a9727e00ef87a630302ab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1bb57575dea540c569265de158429425.png)
(1)求椭圆C的方程;
(2)若直线MA,MB与椭圆C的另一交点分别为P,Q,证明PQ过定点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/435044d7dafb44742838548a506e01f6.png)
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2018-12-17更新
|
1282次组卷
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6卷引用:贵州省镇远县文德民族中学校2023届高三上学期第三次月考数学(文)试题
5 . 已知函数
,曲线
在点
处的切线与
轴交点的横坐标为
.
(1)求
;
(2)证明:当
时,曲线
与直线
只有一个交点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85417b79b6eae94c7eefd460272c42bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b094cba781181aeb90752170e9ba6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/274a9dc37509f01c2606fb3086a46f4f.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df2817c52144d06555e98131b5e657c4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2d8041c797b98b834c70dbf7d1d4346.png)
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2016-12-03更新
|
9286次组卷
|
10卷引用:贵州省三穗县民族高级中学2021-2022学年高二上学期期末考试数学(文)试题
贵州省三穗县民族高级中学2021-2022学年高二上学期期末考试数学(文)试题2014年全国普通高等学校招生统一考试文科数学(全国Ⅱ卷)四川省雅安市2016-2017学年高二下学期期末考试数学(理)试题黑龙江省哈尔滨市第六中学2018届高三10月阶段考试数学(文)试题黑龙江省牡丹江市爱民区第三高级中学2018-2019学年高二下学期期末数学(文)试题(已下线)专题09 导数的综合应用-十年(2011-2020)高考真题数学分项(已下线)专题04 函数导数及其应用-十年(2012-2021)高考数学真题分项汇编(全国通用)天津市红桥区2018-2019学年高三上学期期末文科数学试题(已下线)专题04 导数解答题-2(已下线)专题22 导数解答题(文科)-2
6 . 已知函数
,其中![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37c35e33ffa1a55a0693ae2319da91.png)
(1)若函数
有两个零点,求
的取值范围;
(2)若函数
有极大值为
,且方程
的两根为
,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5740683db4908b89394282ad7bc4e1af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e37c35e33ffa1a55a0693ae2319da91.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3389f53711264b0acba3ba6019f8b908.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8eb2e46f49adba6036e2624639a1b966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ce7ae90d808f05e86ea063238e4b2f9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/174c537d31edcf79b923568b8808646d.png)
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