名校
1 . 已知命题:“
,使等式
成立”是真命题.
(1)求实数
的取值集合
;
(2)设不等式
的解集为
,若
是
的必要条件,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7b4ea13e43d05596446bcbf52a53031d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a14c27da343aac13ea6dc870863b0bac.png)
(1)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac047e91852b91af639feec23a9598b2.png)
(2)设不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77c9379cd1f92f83da21bee1bdc3c676.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/54a5d7d3b6b63fe5c24c3907b7a8eaa3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0ca06304795e9c2c1fd0b4a52eb8d5b9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/acfc595518cf752e1c7903dfff93dbda.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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2 . 已知数列
共有
项,且
,若满足
,则称
为“约束数列”.记“约束数列”
的所有项的和为
.
(1)当
时,写出所有满足
的“约束数列”;
(2)当
时,设
“约束数列”
为等差数列.请判断
是
的什么条件,并说明理由;
(3)当
时,求
的最大值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8b2ea5126ca30d68cc8b70f03860ba2f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1cf1336dd233a8630e7266f0a83dea9d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/43b2ef4791e2c7b4c39194e4a4ce098f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1752474698cd5466dd180df0a00ba9c.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7a1d739890a8951586e23b78b035bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b15324287c0c631960345a3268b9f1a.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8d973faacf520a9af8e193979a6e3b8c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e07e175fd880e7ba92c300ede3cdc570.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
(3)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6ee986f3e8addc977c78f5f82e8f18c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c9ec8f698aefd97055d6dc32a5f13e1.png)
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解题方法
3 . 已知
:实数
满足集合
,
:实数
满足集合
或
.
(1)若
,求
;
(2)若
是
的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074fc6e62b76024813d70d580aba8369.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/013c47a38b6516713f0863073f63146a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/074a2025262fb224ccab1efd1c8c992b.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f22a4a0dd7307a1323d25331e60782d8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若
![](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)
您最近一年使用:0次
名校
解题方法
4 . 已知全集为
,集合
.
(1)当
时,求
;
(2)若“
”是“
”的充分不必要条件,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a43b2faa4f81f32d94612dce724e772b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbf3d46d67ef50002ca18e04a3bb0442.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eda922978abb112ea099f28ff9ec1170.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3f9e3e9114efdef663ecd60364e2c1d.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
5 . 已知集合
,
.
(1)若
,求
;
(2)若“
”是“
”的必要条件,求实数
的取值范围
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a97a364fe3348933be396a0261a9e217.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/973e8173f5b67e01f9cebd9d868d3c52.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3b4d795709b0abcf47bceec2250f2f9b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1fe344fe369fb629b89eb956c85498ea.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
2024高三下·全国·专题练习
解题方法
6 . 已知
,
,求
成立时
需满足的充要条件.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ea508345fd8d185695b0fd5cc7b1899.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cbebb5ce7581439e873e53d55d944c3c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/12ba583329b831d06312a1f20edb4a81.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
您最近一年使用:0次
7 . 已知命题
对于
成立,命题
关于k的不等式
成立.
(1)若命题p为真命题,求实数k的取值范围;
(2)若命题p是命题q的必要不充分条件,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8afe3bc2541382ef1c17ee8532b366bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc08dfa75b0dd54004ef8ea8c39e5530.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9dab20d7facf86b29a8c838e436a16.png)
(1)若命题p为真命题,求实数k的取值范围;
(2)若命题p是命题q的必要不充分条件,求实数m的取值范围.
您最近一年使用:0次
名校
8 . 已知集合
,非空集合
.
(1)当
时,求
;
(2)若
是
的必要条件,求m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/da81f9eb69beba3e297f507bc431a826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/68996b0e58fc8d2236c285d18e9cda9b.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7848c89302a41e9576530313fc3e61b8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/653bcf7b627c3b87fcb310732313d9b0.png)
您最近一年使用:0次
名校
解题方法
9 . 已知集合
,集合
.
(1)当
时,求
;
(2)若“
”是“
”的充分条件,求正实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/102ef930c8cfa1e1ca06982e79b91760.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3808368e4739ec7a800d17a39a793253.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
(2)若“
![](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
10 . 在
,
,设全集
,并回答下列问题.
(1)若
,求
;
(2)若“
”是“
”的充分不必要条件,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/97db28356f3a6a0dd7aa2fadc44196f5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1aba51270a2d40a083a88f057acf5f7e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/442be389c6471b36eff2652b75beb114.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8e258ab9e600435b37465092243d99f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7d702be59738be52fa35da108c70e117.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6ed006b944ea64f970fee46e2f558467.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e23af61cd402b3789af2401bde9cbefe.png)
您最近一年使用:0次