1 . 设
为曲线
在点
处的切线.
(1)求
的方程;
(2)证明:曲线
与直线
只有一个公共点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d19063ed29e90b48a7083cdb83012fda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d7a999c36de5c9a9ce876a4a56fa34c.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
(2)证明:曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
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解题方法
2 . 已知函数
,
.
(1)若函数
在
内单调递增,求实数
的取值范围.
(2)求函数
的极值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1a2789aa3ed49a69c3c68e590ee9950a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
您最近一年使用:0次
名校
3 . 已知椭圆
经过点
,且长轴长为
.
(1)求椭圆方程及离心率;
(2)设
、
、
为椭圆
上三个不同的点,且
、
关于
轴对称,直线
、
分别与
轴交于两个不同的点
、
,比较
与
的大小,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/851a5d6ec23256f9b4a9e98aa92945fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c179fe7eff7abfdd092b63c9c1b82d0c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4e2031d209711b058f3d278ede3c1d33.png)
(1)求椭圆方程及离心率;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2a30f3a8b673cc28bd90c50cf1a35281.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/2a30f3a8b673cc28bd90c50cf1a35281.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e0629ce42392a7fe9be21d25c39c3e64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc5adb5eb60ae4435a12d93854066298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.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/8cd946bffbd8d572c661f791a75c3bdd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43995a8753fb39e768bc0e04a0e2a7b3.png)
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4 . 已知函数
.
(1)若函数
的最小值为0,求
的值;
(2)设
,求函数
的单调区间;
(3)设函数
与函数
的图像的一个公共点为
,若过点
有且仅有一条公切线,求点
的坐标及实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/505ce442f4fc22b7e927ae7fcdb4f215.png)
(1)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13f2e718b64299afc9e39b917525a143.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31b210578dd519049e4105e1405bfd7f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eb7df298a9364b36e079a61caec815c.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/059b5426484fd05ae7e5c037e9e1706b.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/dad2a36927223bd70f426ba06aea4b45.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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5 . 已知椭圆![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dae6629e0dbf18af625cb804874afb9.png)
的离心率为
.
(Ⅰ)求椭圆
的方程;
(Ⅱ)设直线
过点
且与椭圆
相交于
两点.过点
作直线
的垂线,垂足为
.证明直线
过
轴上的定点.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a5bbb709522dba9425a6b45ee671298.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3dae6629e0dbf18af625cb804874afb9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83bd3e48600c511ec035fbea35cb34a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1174142f3bba761585b6bc2653009b36.png)
(Ⅰ)求椭圆
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5db41a1f31d6baee7c69990811edb9f.png)
(Ⅱ)设直线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f85fca60a11e1af2bf50138d0e3fe62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/80c9dcfd9f4c5298035870cb88a34169.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/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e55aa0a20848c37c1892c567b2315e04.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d40b319212a7e7528b053e1c7097e966.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
您最近一年使用:0次
2019-05-27更新
|
1587次组卷
|
8卷引用:北京市朝阳区人大附中朝阳分校2022届高三12月月考数学试题
北京市朝阳区人大附中朝阳分校2022届高三12月月考数学试题【区级联考】北京市朝阳区2019届高三第二次(5月)综合练习(二模)数学(理)试题2020届湖北省部分重点中学高三第二次联考数学试卷理科试题北京市朝阳区2023届高三一模数学试题查漏补缺练习 (2)【区级联考】北京市朝阳区2019届高三第二次(5月)综合练习(二模)数学(文)试题(已下线)专题07 解析几何中的证明问题(第五篇)-备战2020年高考数学大题精做之解答题题型全覆盖北京市第十三中学2022届高三上学期期中考试数学试题(已下线)专题9-6 圆锥曲线大题:非韦达定理形式归类
名校
6 . 已知函数
(
).
(I)若
,求曲线
在点
处的切线方程;
(II)若
在
上无极值点,求
的值;
(III)当
时,讨论函数
的零点个数,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c70b55a85e97c3fbc149434ad8bf6e80.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10ede78fd7ac619ea597856254bb5d75.png)
(I)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5bea9227dd0104da58e0c40952cc87ed.png)
(II)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(III)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff133c17652425c22f0b367e002797df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
您最近一年使用:0次
2018-11-15更新
|
1617次组卷
|
8卷引用:北京市中国人民大学附属中学朝阳学校2022届高三10月阶段检测数学试题
北京市中国人民大学附属中学朝阳学校2022届高三10月阶段检测数学试题北京市朝阳区2019届高三上学期期中考试数学文试题广西南宁市第二中学2021届高三上学期数学文科10月份考试试题广东省佛山市南海区南海罗村高级中学2021-2022学年高二下学期第一次大测数学试题江苏省淮安市盱眙县马坝高级中学2019-2020学年高三上学期期中数学(理)试题(已下线)练习12+导数及其应用(2)-2020-2021学年【补习教材·寒假作业】高二数学(文)(北师大版)(已下线)练习12+导数及其应用(2)-2020-2021学年【补习教材·寒假作业】高二数学(理)(北师大版)(已下线)5.3.3 函数的最值
解题方法
7 . 函数
.
(1)求
的极值.
(2)
在
上恒成立,求
值的集合.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/134354f160c14921512fdd926ef8fe60.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d420af0dd77b10c7c4ab72496b882306.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c5a32cee2ccf0a041d2e81f4a68dea7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2017-12-25更新
|
262次组卷
|
2卷引用:北京市朝阳区第80中学2017届高三上12月月考数学试题
8 . 已知数列
,
,
,
满足
,且当
时,
,令
.
(1)写出
的所有可能的值;
(2)求
的最大值;
(3)是否存在数列
,使得
?若存在,求出数列
;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cff70eedae11d8afe0c0e8ef5fd0a37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e88093a749c0d46e0ee931ecfaff925.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/daa5e9bd516f6282483b92cfe6074623.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8212ecf62b74880881161ebdcd897ff4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1bd1147d3076ee020d6af6c4cc3eaa8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1891d36e6b3385a4ecd019ae50c89b73.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56cc7400e2df7afc836c28f4ff3d4b65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/45b8984330b630e159ca55e9e5629049.png)
(1)写出
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b5c5b0b0a1114834e1431930cd3b7f0.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83233db4f5b58414f11a5b84e3676666.png)
(3)是否存在数列
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9fb3a382e10d7806414df36600c33084.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d3cfeacc29e6a61c5b3b4e439c0a91df.png)
您最近一年使用:0次
2017-12-25更新
|
361次组卷
|
2卷引用:北京市朝阳区第80中学2017届高三上12月月考数学试题
9 . 在四棱锥P﹣ABCD中,平面PAD⊥平面ABCD,△PAD为等边三角形,AB=AD=
CD,AB⊥AD,AB∥CD,点g(x)=f(x)﹣x2+2x是PC的中点.
![](https://img.xkw.com/dksih/QBM/2016/3/8/1572526237679616/1572526243250176/STEM/dac2d58fdb3e47fdb897d54f4d325733.png)
(Ⅰ)求证:MB∥平面PAD;
(Ⅱ)求二面角P﹣BC﹣D的余弦值;
(Ⅲ)在线段PB上是否存在点N,使得DN⊥平面PBC?若存在,请求出
的值;若不存在,请说明理由.
![](https://img.xkw.com/dksih/QBM/2016/3/8/1572526237679616/1572526243250176/STEM/c6ee2582878c43459f9a715104ad812e.png)
![](https://img.xkw.com/dksih/QBM/2016/3/8/1572526237679616/1572526243250176/STEM/dac2d58fdb3e47fdb897d54f4d325733.png)
(Ⅰ)求证:MB∥平面PAD;
(Ⅱ)求二面角P﹣BC﹣D的余弦值;
(Ⅲ)在线段PB上是否存在点N,使得DN⊥平面PBC?若存在,请求出
![](https://img.xkw.com/dksih/QBM/2016/3/8/1572526237679616/1572526243250176/STEM/22e29a7ed6454c45bf43d971c1657df3.png)
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2016-12-04更新
|
763次组卷
|
2卷引用:2020届北京市清华大学附属中学朝阳学校高三第一学期第二次质量检测数学试题
名校
10 . 稿酬所得以个人每次取得的收入,定额或定率减除规定费用后的余额为应纳税所得额,每次收入不超过4000元,定额减除费用800元;每次收入在4000元以上的,定率减除20%的费用.适用20%的比例税率,并按规定对应纳税额减征30%,计算公式为:
(1)每次收入不超过4000元的:应纳税额=(每次收入额-800)×20%×(1-30%)
(2)每次收入在4000元以上的:应纳税额=每次收入额×(1-20%)×20%×(1-30%).已知某人出版一份书稿,共纳税280元,这个人应得稿费(扣税前)为_________ 元.
(1)每次收入不超过4000元的:应纳税额=(每次收入额-800)×20%×(1-30%)
(2)每次收入在4000元以上的:应纳税额=每次收入额×(1-20%)×20%×(1-30%).已知某人出版一份书稿,共纳税280元,这个人应得稿费(扣税前)为
您最近一年使用:0次
2016-12-03更新
|
616次组卷
|
2卷引用:2015届北京市朝阳区高三第一次综合练习文科数学试卷