解题方法
1 . 已知函数
,给出下列四个结论:
①函数
是奇函数;
②
,且
,关于x的方程
恰有两个不相等的实数根;
③已知
是曲线
上任意一点,
,则
;
④设
为曲线
上一点,
为曲线
上一点.若
,则
.
其中所有正确结论的序号是_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d08e4a96cfcea8a303b56b35cafb47fb.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
②
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48b10c7c83af99e5686133623e29c455.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f2c80c26a794a844127aae7dee87c93b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23899cffeb0d20e29e7212a7327c604a.png)
③已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/482ad28bbcbe8b8d384d84851a54386b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81f614a56621170153a1a1c582a145ba.png)
④设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/793894c733026e3f5900b31538fcb731.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2dff006a89ed43e44492206e8516e7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc3d36c7faa45fe5dae65a800cb59c19.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/778083c63e464acd369abc5e667c8d74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f850a3ec66b1438ca4da2c30b6939ea9.png)
其中所有正确结论的序号是
您最近一年使用:0次
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解题方法
2 . 已知椭圆
的离心率为
为椭圆的左、右顶点,
为椭圆的上顶点,原点
到直线
的距离为
.
(1)求椭圆
的方程;
(2)
为椭圆上一点,直线
与直线
交于点
,直线
与
轴交于点
,设直线
的斜率分别为
,已知
,求
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7e5578ca83f5bd5c285994061b9c015.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8641bef03a1d4a212b0c61afd2b4195f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1dde8112e8eb968fd042418dd632759e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9868f77d5ab5073b6145f1c6d272122e.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/60ef95894ceebaf236170e8832dcf7e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2be49c37e30a3ced0364c3e74d8c687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acc290b44635265137fdf13146b6a6d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48f3c9abbd78e9a6840ee5f30381daac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b68df477b3ee45ac0f725db00d465a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e732b8e345e1d88c0a89f39be4324539.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90963760acac7bfad3ae03088c6c80b0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/402fe8b238bae1ad68e8df0ea19d7844.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df64046e91b047037f19e4032e3b6de3.png)
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3 . 已知函数
.
(1)求证:
;
(2)若函数
在区间
上无零点,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f5745682e5823ffaece03ff00945c6.png)
(1)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89f5698f41b542aff4bcebbc81ff92b.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4711c24e049fc24f9b3906110bb6b690.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
4 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f5745682e5823ffaece03ff00945c6.png)
(1)求曲线
在点
处的切线方程;
(2)求证:
;
(3)若函数
在区间
上无零点,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52f5745682e5823ffaece03ff00945c6.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(2)求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a89f5698f41b542aff4bcebbc81ff92b.png)
(3)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/307eabe27b259f882d79a7eef5598492.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02e1c9c97de9198d47306216e9961b80.png)
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5 . 设函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
时,求函数
的单调增区间;
(2)若函数
在区间
上为减函数,求
的取值范围;
(3)若函数在区间
内存在两个极值点
,
,且
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c724e0478a372f71eda478adace8061.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10bbdef421c976962a270a2beabbad91.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526142a22d148ae07a8f0a846e851241.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5265d99095b635f62c7915298ec0e963.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若函数在区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8480e2fbff1b8efc33f593b6029d8ac8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2023-02-01更新
|
807次组卷
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6卷引用:北京市海淀区2022届高三上学期期中练习数学试题
名校
解题方法
6 . 已知函数
.
(1)若
恒成立,直接写出a的值,并证明该不等式;
(2)证明:当
时,
;
(3)当
时,不等式
恒成立,求a的取值集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80ab70ac1f081eead97f4cb82842e024.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f759fb245f7374baaf39859a642b2afa.png)
(2)证明:当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22165fb1166b885fec563eb95b778882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43920f5171ed31db2520ef00e4c5fc24.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22165fb1166b885fec563eb95b778882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/61b901c735b3a93a90bf95e05d1525d6.png)
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2022-10-11更新
|
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4卷引用:北京市海淀区中国人民大学附属中学2023届高三上学期10月检测练习(月考)数学试题
名校
7 . 已知函数
,
.
(1)求曲线
在
处切线的斜率;
(2)求函数
的极大值;
(3)设
,当
时,求函数
的零点个数.并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b5e4e9b6ee4916a0057f8c953f29f1c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
(1)求曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5828873f8369183faf71181cda5b61d2.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/512b7feed6eee6f377ff47bc70213e3f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7f2edd1e2cbf792fbc6643519869eb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
您最近一年使用:0次
2022-01-14更新
|
1493次组卷
|
6卷引用:北京海淀区教师进修学校2023届高三上学期12月月考数学试题
名校
解题方法
8 . 如图所示,已知椭圆
,与
轴不重合的直线
经过左焦点
,且与椭圆
相交于
,
两点,弦
的中点为
,直线
与椭圆
相交于
,
两点.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/1fb1c225-fd14-4d05-a6cd-89903331e3ec.png?resizew=197)
(1)若直线
的斜率为
,求直线
的斜率.
(2)是否存在直线
,使得
成立?若存在,求出直线
的方程;若不存在,请说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ee9bf239ca3358337211814792ecd82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f5076289823db419f94e9c0c8f4aafd9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](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/f52a58fbaf4fea03567e88a9f0f6e37e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/895dc3dc3a6606ff487a4c4863e18509.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/12/1fb1c225-fd14-4d05-a6cd-89903331e3ec.png?resizew=197)
(1)若直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdaa19de263700a15fcf213d64a8cd57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aaf3369e0ea90e8d5cf4b6b3c45c0fd8.png)
(2)是否存在直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4672ff1496d91f7b4be2fa47e911b82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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2021-12-03更新
|
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7卷引用:2017届北京市海淀区高三下学期期中考试数学理试卷
2017届北京市海淀区高三下学期期中考试数学理试卷北京市海淀区中国人民大学附属中学2023届高三上学期期末数学模拟试题(已下线)专题10.7—圆锥曲线—椭圆大题(探索性问题)—2022届高三数学一轮复习精讲精练(已下线)专题31 圆锥曲线存在性问题的五种类型大题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)云南省昆明市第三中学2022届高三上学期期末考试数学(文)试题陕西省西安市长安区第一中学2023-2024学年高三上学期第三次教学质量检测(期中)数学(文)试题辽宁省大连市第三十六中学2021-2022学年高二上学期期中数学试题
名校
9 . 已知函数
,其中
.
(1)若曲线
在
处的切线与直线
平行,求a的值.
(2)若函数
在定义域内单调递减,求a的取值范围.
(3)若不等式
对
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6aa7c01df41e4ac8983494de378658a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8c21ab40ef86e0f4c996da62ecbbef7.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1c6c9feb4963534e06d9afde738ccb0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcac1e85463a3177f487d896b3d1d24c.png)
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解题方法
10 . 已知椭圆
的右焦点为
,点
在椭圆
上.
(1)求椭圆
的方程;
(2)过点
且斜率大于
的直线
与椭圆
相交于不同的两点
和
,直线
、
分别交
轴于
、
两点,记
、
的面积分别为
、
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ef6b94e42869013745050aba059b58dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77d0ad17b2a31609477615424d2c58ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5516da98949f4528c7399e4274c34482.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(1)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(2)过点
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38b6c9d7a8561a43bad7fb09c0ddc4c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c95b6be4554f03bf496092f1acdfbb89.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.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/892909e49156f7dcc0650fcd65243877.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c8ffe24cf9f327aeb241225ab15ab1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](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/7dc2a47750d93b4faed6d66cea09f671.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a466898fbc4d2f5d89cdddd0feabb25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e097c8d4c948de063796bd19f85b3a9a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db7caffa285fbdbb51a0373b3654486c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6801133970b88d5b8340bc59f79fec0.png)
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2021-01-23更新
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5卷引用:北京市海淀区中国人民大学附属中学2023届高三下学期开学摸底练习数学试题