名校
解题方法
1 . 已知命题
:不等式
的解集中的整数有且仅有-1,0,1,命题
:集合
,
且
.
(1)求命题
,
都为真命题时的实数
的取值范围;
(2)设命题
,
皆为真时
的取值集合为
,
,若全集
,
,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1831f5c2c3244d5fb696d26e47dc00bd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c788f74fa52d276d4b4053d7a4920389.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/034672efdeec11b88f10bd9f23bee67b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dea9a4259cca10c1f5af28e621ebafd6.png)
(1)求命题
![](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)
(2)设命题
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf231f8f86fb922df4ca0c87f044cec3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d98c697bf3d6ea92dabdf3caf384cf39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/386f8b626b55b11e7a55ca5fcc440e25.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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真题
名校
2 . 集合
则实数a的取值
范围是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/74b26cb5b5122ddaeb8603f43d1ebb52.png)
范围是( )
A.![]() | B.![]() |
C.![]() | D.![]() |
您最近一年使用:0次
2016-11-30更新
|
2431次组卷
|
18卷引用:2011届江西省上高二中高三第一次月考理科数学卷
(已下线)2011届江西省上高二中高三第一次月考理科数学卷(已下线)2014届天津市天津一中高三上学期第二次月考文科数学试卷2017届湖北省沙市中学高三上学期第二次考试理科数学卷贵州省毕节市实验高级中学2020-2021学年高一上学期第一次月考数学试题2010年高考天津(文科)数学试题(已下线)2014届人教版高考数学文科二轮专题复习提分训练11练习卷(已下线)2014年高考数学考前复习冲刺穿插滚动练习(六)(已下线)2015届湖北省浠水实验高中高三上学期期中考试文科数学试卷2016届黑龙江省齐齐哈尔市实验中学高三上期中理科数学试卷2016届黑龙江省齐齐哈尔市实验中学高三上期中文科数学试卷陕西省安康市石泉县江南高级中学北师大版高一数学必修一第一章《集合》章节检测题智能测评与辅导[理]-集合的概念与运算四川省棠湖中学2019-2020学年高二上学期开学考试数学(理)试题四川省棠湖中学2019-2020学年高二上学期开学考试数学(文)试题江苏省宿迁市沭阳县2019-2020学年高一上学期期中数学试题河南省驻马店市正阳县高级中学2020-2021学年高三预测数学(理)试题沪教版(2020) 必修第一册 领航者 一课一练 第2章 2.2 第6课时 含绝对值不等式的求解(已下线)1.1集合-2
名校
3 . 符号
表示不大于x的最大整数(
),例如:
,
,
.
(1)已知方程
的解集为M,方程
的解集为N,直接写出集合M、N;
(2)在(1)的条件下,设集合
,是否存在实数k使得
且
,若存在,请求出实数k的范围;若不存在,请说明理由;
(3)设函数
(
),方程
的两个实根为
和
,且满足
.若函数
在
时的函数值记为
,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c4f5908d6a1217e493ed7586b6964dd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a8ae4ee70c548e841fd7ceeac3250b5b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a2a6c086cd67c729ec094c21c0d45a5d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c3c15f3d64ba357a69efe1d0c36c0d94.png)
(1)已知方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/583b10b1050c1de417cf05733d9943f4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a5f70582a9395aec59113e8747b7f8a5.png)
(2)在(1)的条件下,设集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ff8515650079724b6b297689ad2e13cb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1744aae300e6de013e882a9ab565d5ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8965c92d1248c68efdc1dcecea46c90c.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16faec6a9498f6d89494a565fd4ab2fa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c36b234ba460321e811de1729eadd4b6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/55cc8e31f2dd9f776d4483b8c917a1ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c814128ea2139e33db94ea590e7c2223.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec19b68e3add9d5bfcc6269a1855b87.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/985354e11259c93e6cd249d87091ebe6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ce6155e181e21ce56ea658b70f8af17.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04d8742c296a7949b598114a34c51f69.png)
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名校
解题方法
4 . 定义区间
、
、
、
的长度均为
,其中
.
(1)求不等式
的解集区间的长度;
(2)如果数集
,
都是集合
的子集,那么集合
,
的长度的最小值和最大值分别是多少?
(3)已知不等式组
的解集构成的各区间的长度和等于
,求实数
的范围.
![](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)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64da75a02173c2a5eb40f4c68d0f4f36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0eae51f0310b87cde2e206643e9d25a5.png)
(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e17a457b3c5b1fb92d5fc93ae41bc08e.png)
(2)如果数集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b2f1316d9c27c24f2c13276b02276e7b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/91da3902297bb8b50bb83d27a108d506.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e11f4ca0e7ace69f92130d0525bcdb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(3)已知不等式组
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/42c4ff1a7228f13e9f261caa60303d3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6f8c4c029e552954bd493b49aeab82d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
2022-10-27更新
|
141次组卷
|
3卷引用:上海市进才中学2021-2022学年高一上学期10月月考数学试题
名校
解题方法
5 . 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)
您最近一年使用:0次
2022-10-20更新
|
299次组卷
|
2卷引用:江苏省常州高级中学2022-2023学年高一上学期第一次调研检测数学试题
名校
解题方法
6 . 已知不等式组
的解集是
,则实数
的取值可以为( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77657237683e4ea11b42d1b9c2640651.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2be27b47979bdb86e9a68577e6ff178c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3ab4717e4827480f0f6f4ded85e52eab.png)
A.![]() | B.![]() | C.![]() | D.![]() |
您最近一年使用:0次
名校
7 . 函数
的图象如图所示,若
的解集记为集合
,关于
的不等式
的解集为
.
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/8f4f85a0-3095-4ec3-ae39-c557b6b17ece.png?resizew=137)
(1)当
时,求
;
(2)若
,求实数
的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e9c599e8d420006448905acec2b8234.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12bfbb0af1b3df5d5eb1ac4f79cd087c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2022/12/8/8f4f85a0-3095-4ec3-ae39-c557b6b17ece.png?resizew=137)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d08fe9a26cb7f41cb6092be2eb422aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2021-09-22更新
|
238次组卷
|
2卷引用:江西省靖安中学2020-2021学年高一上学期第一次月考数学试题
名校
解题方法
8 . 下列命题正确的是( )
A.若不等式![]() ![]() ![]() |
B.集合![]() ![]() ![]() ![]() ![]() ![]() |
C.已知集合![]() ![]() ![]() ![]() |
D.设集合![]() ![]() ![]() |
您最近一年使用:0次
名校
解题方法
9 . 设关于x的不等式
的解集为
.
(1)设不等式
的解集为A,集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
,求
;
(2)若
,
,求m的范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/566b3b5ce1d116f13532c3b9e8be0687.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b6d39251c07d92914352c39669f976f.png)
(1)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/53a3d1dabdd80572054e1c15799f9194.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1f9fabbbe61a759e52ec975215e2e7c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bd14c6b1c62d90fe8ad9f2acabc74dd8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7dd6ac0e7084b6e8537d90ce48c8505d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/281b7f1f77b4b82e84f906019acca76f.png)
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名校
10 . 若关于
的不等式
的解集为
,
的解集为
.
(1)试求
和
;
(2)是否存在实数
,使得
?若存在,求
的范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/374d5551b9e7ca9734d0d13301d8001a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/702d9438cd5abb9efc10b661d8732882.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)试求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(2)是否存在实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/95321d0e551daa25104d32157249c23d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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