名校
解题方法
1 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95b87d2ad290995121d9d25e10036680.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7aed39f5aca78934fb383402433fe549.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cea54fc086ea98c9ff27ab358aeaf1f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/045ebe29bd5e13d1409e78f3b714954a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-07-27更新
|
136次组卷
|
3卷引用:安徽省安庆市2020届(5月份)示范高中高考数学(文科)模拟试题
名校
解题方法
2 . 已知函数
(
).
(1) 当
时,解不等式
;
(2) 当
时,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b84d0cd948e942fe7732b7faf8cc6b69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
(1) 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94cc25a7cf28ed096549fbae97fce40a.png)
(2) 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d71a7010b82b03507eccdae47a1cd2bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/52537bac8fdf8b3d26a4acffaea3baa9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-07-26更新
|
74次组卷
|
2卷引用:云南省玉龙纳西族自治县田家炳民族中学2019-2020学年高二下学期期中考试数学(文)试题
名校
3 . 函数
,
(
).
(1)求
的解集;
(2)当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01dcaf3a079b36a11f419c22e265a31b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7df21b1d1af1758d1a60a28a109bf363.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/188281cc0c7af6e95c32b9bbb94ffc21.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/90918b116ddc7dd7115ece5520dbd006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-07-24更新
|
173次组卷
|
4卷引用:2020年高考全国卷考前冲刺演练精品密卷Ⅱ数学(理)试题
名校
解题方法
4 . 已知函数
.
(1)求不等式
的解集;
(2)若对
,不等式
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5dc2e3686bb3ff48aa07617b8899389d.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3bfa8fb148ee435d66a1b24618c56f9.png)
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0f7dbb416ec1ff1984a724a4f48bf692.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0e6ac85155f946a31e5c8fd5bbae5ef7.png)
您最近一年使用:0次
2020-07-23更新
|
286次组卷
|
8卷引用:河南省2020届高三考前适应性考试数学 (文科) 试题
名校
5 . 已知函数
.
(1)当
时,求
的解集;
(2)当
时,
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3a45948a5f2c50dfb37abb98ea531479.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1591d4244dcf5539a4ae98f554e91e61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abdaffa9c15517afe6d7ba6488f88f67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-07-23更新
|
224次组卷
|
4卷引用:天壹名校大联盟2020届高三6月大联考文科数学题
名校
6 . 若对任意实数x不等式
恒成立,则实数m的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1380dff75423669a3d1ccb007c65046f.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
2020-07-22更新
|
227次组卷
|
4卷引用:黑龙江省哈尔滨三中2019-2020学年高二(下)期末数学(文科)试题
解题方法
7 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若两函数
与
的图象恒有公共点,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b24286d9293245582ae337ebb734334.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7a1d739890a8951586e23b78b035bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d752d8db8a05b3ec7312f6ac8b64a07.png)
(2)若两函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03374589902702fca2c2dfc3d325a024.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
您最近一年使用:0次
2020-07-22更新
|
149次组卷
|
2卷引用:河南省驻马店市2019-2020学年高二下学期期末考试数学(文)试题
解题方法
8 . 已知函数
.
(1)若
,求不等式
的解集;
(2)若
的解集包含
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/93c8e7532060117eec25a19220ce068a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bb88089422e2e6d144a9ffacbad9426f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99623f49b7acd64ca8d39b0fc52ab65c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/304226ca50149b49702928e44d565964.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
9 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)若不等式
对
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/229614a6d98e33deaeafab43b8fa52eb.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe85d488eeaac5a6f7428d00b60ae3ce.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e4a384e05d3ec82f30eab2e11c7c656.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c780149aef1bd77162e85f7f8906a6a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
10 . 已知
(其中
).
(1)若
,求不等式
的解集;
(2)若不等式
对任意
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cd2c16b94fef9b548dd548d8e39aedde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fec7a126e69669d0374f88122823818d.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/203f8144afceeeb58cd51c508d136cb7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad46399e6c77bea82508c20fdafbdcd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次