名校
解题方法
1 . 设函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914a49b0d7aedc593a3e87fbab7c31ca.png)
(1)当
时,求函数
的单调区间;
(2)当
时,曲线
与
有两条公切线,求实数
的取值范围;
(3)若
对
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d22116a0c3bf356ad98e8da8600a79a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/914a49b0d7aedc593a3e87fbab7c31ca.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f73d517aa8a5cb11f9a3fdcbeeae7f98.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51c530f4b7491b95acb8ce3eef9aa09d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a1cfb60420ff7e72c1b9d64f69ae063.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ddf70c1ed5b2a47be8b7fa81043c7b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1d45793b96fcc2aa90c8555b1c5157af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2023-10-22更新
|
439次组卷
|
5卷引用:【校级联考】浙江省衢州五校2018-2019学年高二第二学期期中联考数学试题
【校级联考】浙江省衢州五校2018-2019学年高二第二学期期中联考数学试题(已下线)2022年全国高考甲卷数学(文)试题变式题13-16题(已下线)2022年全国高考甲卷数学(文)试题变式题17-20题(已下线)第六章 导数与不等式恒成立问题 专题五 单变量恒成立之必要性探路法(4) 微点1 必要性探路法(4)——外点效应、拐点效应、孤点效应上海市金山中学2023-2024学年高二下学期5月月考数学试卷
名校
解题方法
2 . 已知函数
,(m,a为实数),若存在实数a,使得
对任意
恒成立,则实数m的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3dbeea5eda8e54549b57979eb813761.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2560586e247a78785c55740e61c353a2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29aef458f2367b76432719f6f56275d8.png)
A.![]() | B.[-![]() | C.![]() | D.![]() |
您最近一年使用:0次
2022-07-02更新
|
375次组卷
|
4卷引用:浙江省衢州市常山县天马中学2020届高三上学期入学调研理科数学试题
名校
3 . 等比数列
中,
,
,函数
,则
( ).
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4be2164a2c67d6163faee87a10942bb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b065334d8f60c49f4bd3d9f1373fe4cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c782d9274b50e5bace8ee2038796b1ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c916369b892f6a8c1faee030a14e373.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb8ed9423b8e8afc41bb22db14e77f0c.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-05-04更新
|
412次组卷
|
4卷引用:2019届浙江省衢州二中高三下学期第一次模拟考试数学试题
2019届浙江省衢州二中高三下学期第一次模拟考试数学试题2020届开卷教育联盟全国高三模拟考试(五)数学文科试题(已下线)解密05 导数及其应用(分层训练)-【高频考点解密】2021年高考数学(文)二轮复习讲义+分层训练(已下线)解密05 导数及其应用(分层训练)-【高频考点解密】2021年高考数学(理)二轮复习讲义+分层训练
解题方法
4 . 已知数列
的前
项和为
,则下列选项正确的是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3179aafc2a53d170bc73c28a205101fd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6a24198bd04c29321ae5dc5a28fe421.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08eb71ecf8d733b6932f4680874dbbf3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fd995178601c2ad7b40f973d268c7bb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04582116cd765fcc5a52f44279ad6c94.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
名校
5 . 已知椭圆
与双曲线
有相同的焦点
,其中F1为左焦点.点P为两曲线在第一象限的交点,e1、e2分别为曲线C1、C2的离心率,若△PF1F2是以PF1为底边的等腰三角形,则e2﹣e1的取值范围为_____ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/48da128547c4cf9745e8e4b99988a3db.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d101bd6b9e4d8bda938e85d2ddce2c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d2a97987f71835f519b462f5b8f5957.png)
您最近一年使用:0次
2020-07-26更新
|
747次组卷
|
5卷引用:2019届浙江省衢州市衢州二中高三下学期高考适应性考试数学试题
名校
解题方法
6 . 已知函数
,其中
,
.
(1)当
时,求函数
的单调区间;
(2)当
且
时.
①若
有两个极值点
,
(
),求证:
;
②若对任意的
,都有
成立,求正实数t的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1027fc43aadcafee9d0cbda7bf656361.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d285a4c557fc9748105b62ccd94b7859.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9ce4430b8b9b0c78de693513a7f88915.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e65397f11ea8af736f38debadf420c4a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a915c1a8a9304aeb307d130faaeb15.png)
①若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.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/26d8dafc71b106f39f4e15442220897b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ede4ee5ce3f0abfbce7b930f23d62ffb.png)
②若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c608d90deedf83441490d0190e70f9c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e4d036d96e005692dc27fc942a1504be.png)
您最近一年使用:0次
名校
解题方法
7 . 已知双曲线
(
,
)的左,右顶点是A,B,P为双曲线右支上一点,
且
,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/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67ca5fd57c2c2fcc3c7a574fdd1467d9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8058e593b5087b15a634f3bfd4d2936.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/63033d1e54dfabd355ca438be95bc588.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
解题方法
8 . 如图,在
中,
,
,若平面ABC外的点P和线段AC上的点D,线段BC上的点Q,满足
,
,则四面体
的体积的最大值是________ ;当
体积取最大值时,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7c56cb3a7babd97511ea58da6979cb.png)
________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/15c0dbe3c080c4c4636c64803e5c1f76.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f121eabff3c62c1a196d9ca5f6f83f0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69b755ee4dda4a72063c6fba125720a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3d092c7e025551511ce7a5534a8e37f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/efcf94c9298a17b826a5f71de5f90f33.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a9ec3b527947cad9caa4537e0cb7e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08a9ec3b527947cad9caa4537e0cb7e7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6d7c56cb3a7babd97511ea58da6979cb.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/23/45833f49-f740-49d3-bc4e-a215b61d4505.png?resizew=227)
您最近一年使用:0次
名校
9 . 已知直线m,n和平面α,
,则“
”是“n与m异面”
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/539a38ada26356d73024fb8533449c49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7421a75946f9a1c1fc3b0d7ac5b9c922.png)
A.充分不必要条件 | B.必要不充分条件 |
C.充要条件 | D.既不充分也不必要条件 |
您最近一年使用:0次
名校
10 . 双曲线
的渐近线方程为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d34cf4ed961f4052ed35c7475c7d32e.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次