解题方法
1 . 已知函数
.
(1)求不等式
恒成立,求
的范围;
(2)若
,且对
,总存在
,使得
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/746d2eafde8d0c20e74e1f805aee7eea.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/369100ccd44feaa77e5f119ea949a879.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0bb1e7475dd989f4a692bfc8b206b107.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a388b0d122d08d0211d818df53aba3b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/86ba8542fbe02e78cf3948c9abea9855.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-05-01更新
|
139次组卷
|
2卷引用:重庆市江津中学、綦江中学等六校2019-2020学年高三下学期4月复学联合诊断性考试数学(理)试题
解题方法
2 . 已知函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af3879e6229a3c149aa66a75e0af26f.png)
(1)若
,求不等式
的解集;
(2)若不等式
的解集包含
,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa19785f2e470d94631d817d76ece66.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4af3879e6229a3c149aa66a75e0af26f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9bfbe2eb6c502d3d304bbe3c95b54061.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/254712255cd776695334303cebb07064.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25a4b68d7be63ec223f642976a1087ba.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
.
(1)当m=-3时,求不等式
的解集;
(2)设关于x的不等式
的解集为M,且
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/075c3614b34207db8223089d821a440a.png)
(1)当m=-3时,求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2b45f8224a638bb503ccb01749cfeb1.png)
(2)设关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4e4f9fc93a02819ed4396ecc74ef7c6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f77840d2a96b9369413b8666140ac89b.png)
您最近一年使用:0次
2020-09-21更新
|
155次组卷
|
9卷引用:2019届重庆市合川瑞山中学高三下学期模拟训练(理)数学试题
名校
4 . 已知函数
,
.
(1)当
,
时,求不等式
的解集;
(2)当
时,不等式
的解集包含
,求实数b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a83ab22b0c36cd8c26e061db720eb46b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7098954c410240fd958be5ddab452071.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68a394bf6014ce1023c403288fb1db4b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9770a3297e2d5bc1f810c474cf29ab95.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/447d6f62c09c1d05346fd16a24159f6e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9d188ec2580e273ce87e51653a2177ee.png)
您最近一年使用:0次
名校
解题方法
5 . 设函数
.
(1)若
,求
的解集;
(2)若
,
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ea4f45953494b21c48346cf4e89c0948.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04bbcc3eb28e550b30e7ba6eaa09fe8f.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/59db44aa4cb346fbd7ebfdf629d658f7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
您最近一年使用:0次
2020-07-16更新
|
268次组卷
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3卷引用:2020届重庆市第八中学高三6月三诊数学(理)试题
名校
解题方法
6 . 已知
.
(1)若
,求不等式
的解集;
(2)若对任意
不等式
恒成立,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/428ea30a7d1e82186b878404bd41f9ba.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4d0cd47609b9d1865dfff4979161cf5.png)
(2)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4166972dec0aa3e8694a44eeb941a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/669383b0cae9df86a6d89c8656f0f954.png)
您最近一年使用:0次
名校
7 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda0d32c2d821c5f9d967f0c9470bc68.png)
(1)当
时,求不等式
的解集;
(2)若函数
的值域为A,且
,求a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fda0d32c2d821c5f9d967f0c9470bc68.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b108ab31cc093f03cf48ad65429889e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69fc974be7eb2b65d93615e9d34556fa.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c4f040fd81bfed01359899b73093d8ac.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4000c6caff1229271ee28d0a27c5740b.png)
您最近一年使用:0次
2020-05-06更新
|
348次组卷
|
3卷引用:重庆市渝北区、合川区、江北区等七区2019-2020学年高二下学期期末联考数学试题
名校
8 . 已知函数
.
(1)若不等式
的解集包含
,求a的取值范围;
(2)若
的值域为A,且
,证明:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/407ac12078967203f1aa3211a5d10f2f.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0fcd87b8dda00c33eb17aff371297b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9210e75c35fb455d0446eb7ddba7d79c.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57e35231b964e293122c4383dac2431b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d14d18a955abb370977d6fba4219d95b.png)
您最近一年使用:0次
名校
解题方法
9 . 设函数
.
(1)当
时,求不等式
的解集;
(2)若不等式
的解集包含
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2080975ac658793421d91cb9fa04dc81.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/711b21672fd907c5c92fee1d649e7003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab42740d8f095b5f7825d14c4c312096.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ab42740d8f095b5f7825d14c4c312096.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0de71d25c72850e383a4c841eed0db99.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
2020-02-14更新
|
111次组卷
|
2卷引用:2019届重庆市沙坪坝区第一中学校高三4月月考数学(理)试题
名校
10 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b0a24934b608f40bb2c91514f1075f.png)
(1)若
,求关于
的不等式
的解集;
(2)若关于
的不等式
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b0a24934b608f40bb2c91514f1075f.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e93a699a385ae453ce1a6f98e6eb519b.png)
(2)若关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a0dd18467feea8eb478f4669a32c2d57.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2020-02-07更新
|
163次组卷
|
2卷引用:2020届重庆市巴蜀中学高考适应性月考卷(四)数学(理)试题