1 . 已知关于x的不等式
.
(1)当
时,求不等式的解集;
(2)当
时,求不等式的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8ba7d270e893152c1128fb9379185ecb.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bac65e4153965d351c3d6ad587f2adcc.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
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名校
2 . 已知关于
的不等式
.
(1)当
时,求此不等式的解集.
(2)求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9a84165489576601462c46763d9ddb6.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9a81e971f501d78f5560c0c3d42f0f6.png)
(2)求关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/23be4349667646720aed1e4c8d86f87d.png)
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2019-11-14更新
|
509次组卷
|
5卷引用:天津市六校(静海一中,杨村中学,宝坻一中,大港一中等)2019-2020学年高二上学期期中联考数学试题
名校
解题方法
3 . 解不等式.
(1)
;
(2)
;
(3)
;
(4)
.
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7bef6c864410f4a41572a982da339feb.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1047287e05d400d687631515bbb2b217.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a0d98baced634d0b7bbcf187b08ca57.png)
(4)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a4ac426f6a4cd92ab7f7a79cc40b041.png)
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名校
解题方法
4 . 已知函数
,函数
,记集合
.
(1)集合
;
(2)当
时,求函数
的值域.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/517536615cf392b2a0d00f60babbef98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a17e3a6f933375ce1099980c349b49d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8782183cf46e7a28ff064ff490312f54.png)
(1)集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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5 . 求下列不等式的解集
(1)
;
(2)
.
(3)
.(其中
属于实数)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb93f6c25cb374f59b51550c7f5c9f89.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42e643dbd8e60413719b35e4922ded64.png)
(3)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c84dc3301b153c00d037ad2b03cf058.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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名校
解题方法
6 . 已知集合
集合
集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d01831ceeb9103fec347fa4fe3b248.png)
(1)求
及![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c25385c7a33e7842a974ba82abf295.png)
(2)若
,求实数
的值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b101fba86237860e9d033610b738e6e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bc3e14a783c6f6a78d1b6b502700799.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6d01831ceeb9103fec347fa4fe3b248.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/07c25385c7a33e7842a974ba82abf295.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb9d82d19ddbec3a1751d8e91c8551e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
7 . 已知函数
,
(1)解关于a的不等式
;
(2)若不等式
的解集为
,求实数a,b的值;
(3)对任意的
,不等式
恒成立,求实数a的取直范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/460e15a4b7ae7593d199db8fc5ef6d6f.png)
(1)解关于a的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/75f54ecfa11026d97c8d315e55e0d34a.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4a8369382ab01dcf4eca6287af89c06f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9a7e88b74f492f89e21e4cf65353bdb6.png)
(3)对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/03db2421a0422a6e02286dd681d8afb5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a1095bc055c41fa7d7e84b5726889319.png)
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8 . 已知实数
并且满足
,若
恒成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2a9344f4fca7b9779ca7720e5277ea6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9636b2dfc7d7ec0734ae96762f25135.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e7178791cd37cc24b7f636f4713ba4fe.png)
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名校
9 . 分别解决下列问题
(1)解关于
的不等式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6048ff0be99a96698fc535d887840f0.png)
(2)解关于
的不等式:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15e7f080e96738a71f8ce8d75349100.png)
(3)结合此题填入部分数据
(1)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6048ff0be99a96698fc535d887840f0.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a15e7f080e96738a71f8ce8d75349100.png)
(3)结合此题填入部分数据
方程![]() | 不等式![]() |
![]() | |
![]() | |
有两个不等实根 | 当![]() |
![]() |
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