解题方法
1 . 已知双曲线
的左、右顶点分别为
是坐标原点,焦点到渐近线的距离为
,点
在双曲线
上.
(1)求双曲线
的方程;
(2)直线
与双曲线
的另一个交点为
是双曲线
上异于
两点的一动点,直线
与直线
交于点
,直线
与直线
交于点
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ef66f4832adc43902055a7e6d258037.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef644115c956ed62c3da8310c6f67ecd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7ffe8515ff6183c1c7775dc6f94bdb8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/743c08b3555fca31cd299d6d90242fba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(1)求双曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/828628c0876b45381c9a0edeb0fec236.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6b1e3dfb2e3e9bf0b52e417a1ca5a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01c74a907dda6bb7d9d56d009d9df253.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2cdba1337ec85fa9722cb4b320a82ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/639c3d2ff5ee566fcc1b69c65712a661.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d685b2138e6499686474bb2d131a2234.png)
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2024-02-29更新
|
111次组卷
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2卷引用:河北省邢台市2023-2024学年高二上学期1月期末数学试题
名校
解题方法
2 . 设双曲线
的左、右焦点分别为
,过坐标原点的直线与
交于
点,
,则
的离心率为____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db0cc24753f6ea44c19c3cc49e26024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e52586ca2a3b783bc8092415e2d4bf6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/654ac5370193ceb23b2de359d52a3344.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
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2024-02-29更新
|
491次组卷
|
5卷引用:河北省石家庄精英中学2023-2024学年高二上学期期末数学试题
河北省石家庄精英中学2023-2024学年高二上学期期末数学试题吉林省四校2023-2024学年高二下学期期初联考数学试题重庆市铜梁中学校2023-2024学年高二下学期开学考试数学试题(已下线)专题15 双曲线离心率(一题多解)(已下线)第1题 双曲线的离心率问题(5月)(压轴小题)
解题方法
3 . 已知正项数列
满足
,数列
的前n项和为
,且
.
(1)求
的通项公式;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/754fab8d21931dadc416bec9d0372322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034ba25825c13725931c483aa47c9363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3802c33d240597aaaa5f8bb7b872a87.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ed48c3e5c53eba20c2e262b7d2c09bfc.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10aeff28f50981f5585dfe28d51d5a84.png)
您最近一年使用:0次
2024-02-28更新
|
339次组卷
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2卷引用:河北省承德市2023-2024学年高二上学期期末数学试题
名校
解题方法
4 . 已知双曲线
的离心率为
,点
分别是双曲线的左右焦点,过
的直线交双曲线右支于P,A两点,点P在第一象限,当直线PA的斜率不存在时,
.
(2)线段
交圆
于点B,记
的面积分别为
,求
的最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19f3fa0b40fb0d9b8c62e37316ab3b04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf298f00799cbf34b4db26f5f63af92f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3fb78c5f885034612c0e030b920143d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49f103bf5165f87bbd99090ee8cc50fe.png)
(2)线段
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ac86e1c253297a377e14fb9a1689be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aa46bcef998ac174ca0f564fc39b667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ed4138590ae2a43a383663f3cff223e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fc4ea29a512c7979a09adcff888ed7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51da7a6689fcd857bdafe8b9aef58231.png)
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名校
解题方法
5 . 如图,曲线
下有一系列正三角形,设第n个正三角形
(
为坐标原点)的边长为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/326e8eff-afba-4a54-904a-1f1520674cfa.png?resizew=166)
(1)求
的值;
(2)求出
的通项公式;
(3)设曲线在点
处的切线斜率为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aef469c7b7cb9945b984222381b9c000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e03c4f6095c0cd2d0262c738d0b6472.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2b1698b9a76d725f9a254b9798d926fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96abfe2da27a63e6affb19a0c80236d9.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2024/3/1/326e8eff-afba-4a54-904a-1f1520674cfa.png?resizew=166)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c0158862238e250d2a2598b7d4ecd148.png)
(2)求出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/76aef4cdcb5af742ce28003b7b6c8c20.png)
(3)设曲线在点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bf83e20035c3afd6d26ebfd53d768a70.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3bbbf4d763f3cbe5a71707bc19c78191.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dcc0f1666e7fe2b206296984a932deed.png)
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2024-02-28更新
|
260次组卷
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2卷引用:河北省石家庄二中2023-2024学年高二上学期期末数学试题
名校
6 . 已知函数
.
(1)当
时,求曲线
在点
处的切线方程;
(2)若不等式
,
恒成立,求实数a的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e442b944a03e22fe96d18d4a7f33a9dd.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f832d9cca2d5c9d76d38374e2a258d9.png)
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解题方法
7 . 已知点
在抛物线
上,则![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
______ ;过点M作两条互相垂直的直线
,
分别交C于A,B两点(不同于点M),则直线
经过的定点坐标为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0bea681006f614f8a070e9c6a942c04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ea1be9b9b6bb12afa7e1ce703d1603.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df5be1440d099f464ef46dee39de6010.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b66a5b7813e902306477f91f9f4084cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e5c62f22d7afc5627fcb86599faa8e1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
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解题方法
8 . 过直线
上任意一点
作椭圆
的两条切线,切点分别是A,B,过点
向直线
引垂线,垂足为
,则线段
为坐标原点)的最大值为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f23d29646155e27b172ecdf263e2d702.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e62dfe60e2f098c466a048b982151365.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73465a1f9aa03481295bf6bd3c6903ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c45a28f39e858bfff590fe875514772.png)
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解题方法
9 . 椭圆
的离心率为
分别为椭圆的右顶点和上顶点,
为坐标原点,已知
面积为3.
(1)求椭圆
的标准方程;
(2)过点
作直线
交椭圆
于P,Q两点,过点
向
轴引垂线交MN于点B,点C为点P关于点B的对称点,求证:C,Q,M三点共线.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e5894e8358f5d868a0e8547f8133b967.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/066ea7c8dac31105aadedad5f34d93fa.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ceec39aaaccbeaac9a4a5bdbb0f0e9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
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名校
解题方法
10 . 已知A,B是椭圆
与双曲线
的公共左、右顶点,P是双曲线在第一象限上的一点,直线
交椭圆于M,N两点.若直线
过椭圆的右焦点F,则
的面积为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6cae00bdc6f8b564b6b15b32572c848b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c465114dc2665d74246240b1d4d26ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/790ef3382b1c731f2885eecfd92c2a86.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/411461db15ee8086332c531e086c40c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a11cb104b04c4e6a1be700e81da279a.png)
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2024-02-24更新
|
141次组卷
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2卷引用:河北新乐市第一中学等2023-2024学年高二上学期期末联考数学试卷