名校
解题方法
1 . 已知
,
.
(1)若
,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/ba3363ec4cfac92180fe6eb0215a2bab.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1e69392d21261afd8e5e5f096634669.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f81ed7f6a4475e0fa682fa81ee747da3.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc6cf993b9614fd187e84029e55eeb38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cfea60a0b2e13c123f862f15d6c9485b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
名校
解题方法
2 . 已知函数
.若关于
的不等式
的解集为
,则实数
的取值范围为______ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e45a29223cd7c06255984f90b4ac7550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91165dd5c0551f8cd0f12e35b8d8040f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
3 . 已知实数
,
,且满足
.
(1)求关于
的不等式
的解集;
(2)证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/08115d6d9f876dea921a4d32260ff1fb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/061813f1ec633c5c4c393c4de7938322.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5558c083d34cbb0a58d3ce1dc6f5778e.png)
(1)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91a8146dad7e3975754cd0e8a97abdbc.png)
(2)证明:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ecacbc95623f5ef79166385476fad5a.png)
您最近一年使用:0次
解题方法
4 . 已知函数
.
(1)当
时,求不等式
的解集;
(2)
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5cfaa9e73ac63fc881edd08ebb9b781b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/abdaffa9c15517afe6d7ba6488f88f67.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/41a5903c92c2d683e62671e7a42d78c1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-05-09更新
|
187次组卷
|
2卷引用:2020届全国100所名校高三模拟金典卷文科数学(一)试题
解题方法
5 . 已知函数
.
(1)求不等式
的解集;
(2)若对任意
,
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c4b80c0495ddfd6469c4e9bcc75484a.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/086124cdb8a868fe7202dd1216909ae4.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d1ac7392af3661f337173e8d7f707634.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/26ad46a0d83da3f1db6974fc7bb71c72.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
6 . 设函数
.
(1)当
时,求不等式
的解集;
(2)若
,
,
,证明
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58642282f2cf8b1facd2d493a03d08a8.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d0bd8141e9d8f1f75a7f2c5c640ede.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/859cf5bf57a50d2da19c0bb926ce9c18.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0dbdcde4d5737f829703884651fff0a8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db2bc58b3402c1bccbc290bd95a34f7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f85193428615f049f80f00c8c7c00862.png)
您最近一年使用:0次
2020-05-09更新
|
203次组卷
|
2卷引用:2020届广东省汕头市高三下学期第一次模拟数学(文)试题
解题方法
7 . 已知函数
,a是非零常数.
(1)若a=1,求不等式f(x)≤5的解集;
(2)若a<0,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2331e2b8a8ddd21a13648c1fb47e4c24.png)
(1)若a=1,求不等式f(x)≤5的解集;
(2)若a<0,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d4dd958d7ab5f1d9f9ed831d5782f3.png)
您最近一年使用:0次
名校
解题方法
8 . 已知函数
.
(1)求不等式
的解集;
(2)若
,对
,
,使
成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59eefbae0aa742fadce3d76209624c31.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/335c6cb34ba1ae8efc3c9711d38b0c55.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/44fd1ae9d4e47d616ac1ef89c92af09e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a388b0d122d08d0211d818df53aba3b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7898341abbbf8da0a085fa59d0887576.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解题方法
9 . 已知函数
.
(1)求不等式
的解集;
(2)若不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0c39deb9574f6be3552cc4366792d12d.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f66d61d5f66d68b4c4a2a25fd7103621.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c052140406ee4803ed0b864be6221df7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
解题方法
10 . 已知函数
.
(1)求不等式
的解集;
(2)设函数
的最小值为
,已知
,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae40430099c08442eb46892d734bf2e4.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6275e2a2d4840c3d8e524ceae33e5c65.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1df37039e9be03a1ea31b91af60e6a84.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3539640e5344567a1071b64751cecc8f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ff3847b60ab56616d0ed5e2b35a0e50.png)
您最近一年使用:0次
2020-05-03更新
|
490次组卷
|
6卷引用:2020届湖南省湘潭市高三下学期第三次模拟考试文科数学试题