名校
解题方法
1 . 已知不等式
的解集为
,函数
的定义域为
.
(1)求
;
(2)若
,求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d688d789811c277564efef83840fd12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afd2842684cbf7a9d2160c22819c4317.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c2ad78dc8b8aed907b4fe9640c997454.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
解题方法
2 . 定义区间
、
、
、
的长度均为n-m,其中n>m.
(1)若不等式组
的解集构成的各区间的长度和等于6,求实数t的范围;
(2)已知实数a>0,求满足
的x构成的各区间的长度之和.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ba7204f43679af6935e494c59d40c6ff.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b85a97933a1d984f6e484b4021c800.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd4d438ae7d4da0e100bb92d622c866.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31a381cebfeee07ae150cdeff6e7a64d.png)
(1)若不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d7754c04141cd52d380925440f3e7281.png)
(2)已知实数a>0,求满足
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9795eba7db63c2bbec7166b354163e84.png)
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2022-11-06更新
|
381次组卷
|
2卷引用:黑龙江省齐齐哈尔市克东县“五校联谊”2022-2023学年高一上学期期中考试数学试题
名校
解题方法
3 . 已知三个不等式:①
;②
;③
;
(1)若不等式①和②的解集分别为集合A与集合B,求
;
(2)若“
”是“
”的充分不必要条件,求m的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b7f18821e5860e5ac12413a39ce5e6bf.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/690162f516e4db438c8e6946604bf72e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e7b904e5c926685b119394a9f6fc65a.png)
(1)若不等式①和②的解集分别为集合A与集合B,求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38ee569a8ff677073ef2b7aaac3ce69f.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e949a465a33bcf9e9a3f8b9cde19cc3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3527e5db0a80be1d9086a91609077168.png)
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2022-10-20更新
|
299次组卷
|
2卷引用:海南省海口中学2022-2023学年高一上学期期中检测数学试题
4 . 已知关于
的不等式
的解集为A
(1)试用区间表示集合A
(2)我们把区间
叫有界连续开区间,把
叫有界连续开区间的长度,若集合A为有界连续开区间,求集合A的长度L的最小值,并指出当L取最小值时
的取值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3927197e2613b045c8946f03374501e5.png)
(1)试用区间表示集合A
(2)我们把区间
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4562f3225c98cf5cb11b47d98c9cc9c3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/13502d46b8563c54c09b29b20b3006a4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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名校
解题方法
5 . 已知集合
,集合
.
(1)若
,且
,求实数
的取值范围.
(2)
,若
是
的必要不充分条件,判断实数
是否存在,若存在求
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e2f7f54fc1f80683ea5f415d7b38fde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b3a2c01b537cf7c294432d623cd832.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c71b2a0394a47e6aa7b2f20a03ac788.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb9d82d19ddbec3a1751d8e91c8551e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82844a05c35503d6575efb20931cca65.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a479511a50da604b2fc7398617db8387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e02cab1add26335b3cb43d5b54c7c853.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2020-11-29更新
|
571次组卷
|
6卷引用:湖北省武汉市第二中学2020-2021学年高一上学期期中数学试题
14-15高二上·江苏徐州·期中
6 . 设
命题
.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7417503cc66631eacc05fcef119c6a.png)
(2)若命题
是命题
的一个必要不充分条件,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ee7ad52e33a1e486aa3ea73a09698d2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4832a1611f1a8420ba625d17c0bdee36.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e7417503cc66631eacc05fcef119c6a.png)
(2)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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名校
7 . 下面命题正确的是( )
A.“![]() ![]() |
B.命题“![]() ![]() ![]() ![]() |
C.不等式![]() ![]() |
D.设![]() ![]() |
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解题方法
8 . 已知集合
,
.
(1)当
时,求不等式
的解集;
(2)在①
,②
,③
这三个条件中任选一个作为已知条件,求a的取值范围.(注:若选择多个条件分别解答,则按第一个解答计分.)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5c93fbd2e4edf4ee87d000e4a28619d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b0f4cfd5e4de2ad8d78b509c40e7fe5.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1ce86e9a3437aa44fd2c8452aec77e58.png)
(2)在①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaf37be0c2d4521397102009c248f3cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/162ae13f0a5b3b825f51648fb85d7d81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6e15841ac004568a464df9cc7bb18392.png)
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名校
解题方法
9 . 设不等式
的解集为
,不等式
的解集为
,集合
.
(1)求
,
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/11525023e3f47ce039e2b27bb8c95b51.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e720d34ced3d82ad59f3c41e7137470.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85a9e9b6c6003a410bf4fb09c4398cf5.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39044392b77990910bf48d859b5cd7ef.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d2bed4f3b7d72db3b022165360678e8d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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2023-11-04更新
|
281次组卷
|
3卷引用:北京市八一学校2023-2024学年高一上学期期中考试数学试题
解题方法
10 . 已知函数
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
(1)若
在区间
上不单调,求实数
的取值范围;
(2)若
的解集为
,求关于
的不等式
的解集.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/931e2ab434c93b7dbc6abeb340685989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73254f32b6da29ecc32df2e9f87a4c97.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac9c64ba837387d640de4b8e2191b1b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71a3619ccbcf65312754a970647014e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f981aa52b1686e220f6e106643805a5.png)
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