名校
解题方法
1 . 若不等式
的解集是
.
(1)解不等式
;
(2)当
的解集为
时,求b的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/930a579ddfca10913b201cd03a2eedcf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0b05849c5aa6777c65d0035f08ad96e.png)
(1)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/383e0cc4ef5dc56a26a863f71bfce1f9.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2bccf813015e921bfc31a9f9d5c84698.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
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解题方法
2 . 下列说法正确的是( )
A.函数![]() ![]() |
B.关于![]() ![]() ![]() ![]() |
C.若正实数a,b满足![]() ![]() ![]() |
D.若函数![]() ![]() ![]() ![]() |
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名校
解题方法
3 . 关于
的不等式
的解集为
,
(1)求
;
(2)
,若
是
的真子集,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeadc848a245ea1f4f26494ea7a7be38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d6c29ae68ae614c861d08303ef6857b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
4 . 已知函数
,
.
(1)当
时,求不等式
的解集;
(2)若对任意的
,存在
,使不等式
成立,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4fa529b4c6e474659e8cffdbd6d98d1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89a768cc949e4d1ca3effaa7f82b2156.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8a3cc8c48bf54ec8252e5dce6867754.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ad94ea3069c0b8a84d69b1a63c4bfe22.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a6a3163cc2d37e7b7fe450f6e8bf8500.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff565afbddafe8625ef376d7eb3fa649.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec6154e00013d9dee84c0e941f676ea9.png)
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名校
解题方法
5 . 求解下面两题:
(1)已知关于
的不等式
的解集为
,求不等
的解集;
(2)若对于任意实数
,不等式
恒成立,求实数
的取值范围.
(1)已知关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e42f848c5ebf2980cccd9c81c78e8132.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bcf129cdf0243d11594f3292e5b96615.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b1c12a00ec0eda4dd2cfc79da60b52.png)
(2)若对于任意实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/286a22b680079cda58e99834c7af6414.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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2023-12-20更新
|
367次组卷
|
3卷引用:重庆市2023—2024学年高一上学期期中七校联考数学试题
名校
6 . 若关于
的不等式
的解集为
,则
的取值范围是__________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d55493c217a42c4171af1236c9607740.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/89b8cde79b3939637ea0cd6ca4b25490.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d7ed3b92121a40cc00de1a7b281a9ae.png)
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2024-01-03更新
|
1419次组卷
|
4卷引用:重庆市乌江新高考协作体2024届高三上学期高考第一次联合调研抽测数学试题
7 . 任意实数
均能写成它的整数部分
与小数部分
的和,即
(其中
表示不超过x的最大整数). 比如:
,其中
. 则下列的结论正确的是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda2bc2e6a5eaf4fa5ff901985dd0e53.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ac21cde1e074dd30c087b930c71516c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2ab85825d4a002600ca41bd3cd2ee7d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d54dcaa08b944a66faa980d8db9d4514.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/848a8fcb2f61fb1d2f5203dc6969fec5.png)
A.![]() |
B.![]() ![]() |
C.不等式![]() ![]() |
D.已知函数![]() ![]() ![]() |
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8 . 不等式组
的解集为
,则
的取值范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b9d4661cf00db0f0bd791b8ba62f1578.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4d39bac2b9f9e2e4a5b33cd4873cb146.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
A.![]() | B.![]() |
C.![]() | D.![]() |
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9 . 若函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63aaa178677e179fd17fb87877ccb38.png)
且
的解集为集合
.
(1)求实数
的值;
(2)若函数
的图象始终在函数
的图象上方,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d63aaa178677e179fd17fb87877ccb38.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/14a46edeb8d055d1bf8efb8d79cf1f37.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ae7dc4293011a82a5de9c821db472b6a.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/632244ea6931507f8656e1cc3437d392.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c7028a5fa4d781d382ca3b73b74796e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff4d12362d4b8dd25813953e1c5a94b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解题方法
10 . 已知函数
.
(1)若
是
的一个根,求
的解集;
(2)当
时,
恒成立,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0567bf8bfae88e932d6776ab86ca51cb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/707ea658f3a9359f5740d5aab48f7948.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/49b7bff9b2431134f7683a9cc4e68acd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ebfdecc7f8089cb23c20d0a93ee1b601.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/561392132cbcffc03e304d41e444ddea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58196b9e63ec00aa1119052b6de6ae12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/071a7e733d466949ac935b4b8ee8d183.png)
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