解题方法
1 . 已知命题
:对于任意
,不等式
恒成立,命题
:实数
满足
.
(1)若命题
为真命题,求实数
的取值范围;
(2)若命题“
”为真命题,“
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9322dd8f56b5f8d2c667fdf0d4a9f9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3c9a11b5ed4416fa40c30a760c9aaefd.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/77b88fd68d6d0d7439b06730f0a846c7.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若命题“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024-02-20更新
|
52次组卷
|
2卷引用:四川省雅安市天立学校2022-2023学年高二下学期期中教学质量测试数学(文)试题
名校
2 . 全称量词命题“
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/32b8b0ad42959049f506727850955812.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
2023-12-29更新
|
566次组卷
|
2卷引用:四川省成都石室中学2023-2024学年高一上学期期中考试数学试题
3 . “
,
是奇数”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64bd5b0dac2c5208eab0f04f75557f3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/479deb0d44b775ff8188f0f55a7db303.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
解题方法
4 . 设全集
,集合
,集合
.
(1)若“
”是“
”的充分条件,求实数a的取值范围;
(2)若
,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d4ea1a902d2bd859682cf8d43b0b0d5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/99c247536bd28f513419a44f582616a1.png)
(1)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
您最近一年使用:0次
名校
解题方法
5 . 已知集合
.
(1)设全集
,若
,求
﹔
(2)若______(请从①
,②
是
的充分条件,③
这三个条件中选一个填入),求实数a的取值范围.
注:如果选择多个条件分别解答,按第一个解答计分.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/149e58d1f4574faafb0a1bef3e8b18a9.png)
(1)设全集
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fc0dc8098ad6f31bdd87771ca9cfa33a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/57b7e4c9bbacdc054047dd2e732ab4c2.png)
(2)若______(请从①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6645ad088927971f8a8b60d951d93d1a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/320a7c616f6f7207a0a38bb707ac2205.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3591abc88bdadaf5fee459f4620fbd47.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f1baa634adb05b27164ef44a272cda31.png)
注:如果选择多个条件分别解答,按第一个解答计分.
您最近一年使用:0次
6 . 设全集
,集合
,集合
.
(1)求
;
(2)有三个条件:①
,②
,③“
”是“
”的必要条件,从这三个条件中任选一个作为已知条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/860ebb6f76cd3cb9a265dfc233002a13.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c1deb5147fbdc85fd87e3d88e6e19af3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71714a3d9fae12e5a423b90532a839ab.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d671d4ce46f03f75a328734f2acbac91.png)
(2)有三个条件:①
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/421e675c78c65373378ddf2928c808af.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
解题方法
7 . 已知全集为
,集合
,
.
(1)若
,求集合
;
(2)请在①“
”是“
”的充分不必要条件,②若
,则
,③
,这三个条件中任选一个,补充在下面问题的横线上,并完成问题解答.若______,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25953f0b1e79e399b40e80e7ecbc093b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/663854b5ccdb9de9666dee2ed6f8400a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbd3c1cb06b3348c7671c93b6cf90e48.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/720c70b864e776c1295978e769afd89d.png)
(2)请在①“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f692cdc81d52ab2fda33ace0c006a808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6833b91adaea892664f8c773d5922b5f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f692cdc81d52ab2fda33ace0c006a808.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b328da1c9c8cda093e67b83a503005c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/72155300d2c231dbbaabfbdd2a122028.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
名校
8 . 命题“
,
”的否定是( )
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c8834da9d4ee61b171ed90e69a9a197d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c84f791dabaf4e6dd3e0da98c6501a9e.png)
A.![]() ![]() | B.![]() ![]() |
C.![]() ![]() | D.![]() ![]() |
您最近一年使用:0次
名校
解题方法
9 . 已知函数
(
,且
)在
上的最大值比最小值大2.
(1)求
的值;
(2)设函数
,求证:
为奇函数的充要条件是
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3d76ee3b131ecd6aa1aacf7fb7b3eb15.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c400a615a16a1662de98dfb4e49d58d3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b6c1756b564bf1d998d8179637011c88.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/954ad91827f930515da603a1255cab2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf0086b054ef120408acac806a1b1318.png)
您最近一年使用:0次
解题方法
10 . 若
,
,
满足
,则称
比
更远离
.
(1)判断“
”是“
比
更远离
”的什么条件,并说明理由;
(2)已知
,
,
,证明:
比
更远离2.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71b64038c64dcef1b85022f7760a4468.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(1)判断“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e80ecf0f1da5e6a9232dbacd36119e6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d053b14c8588eee2acbbe44fc37a6886.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/de8610232c77741a37463feba1a66c94.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/713bda4ff4191a7c65358320c1c9a000.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/38387ba1cadfd3dfc4dea4ca9f613cea.png)
您最近一年使用:0次