已知集合
为函数
的定义域,集合
是不等式
的解集
(1)
时,求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ca9d898ca54eeaa82e03570ada11137.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c2c2b5beb1a963c3b0fda329896c4aa.png)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9228b976afe20f6cef8b9c20a6a08f7.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dd9d50619b779c1056602f46b2a95e90.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2021-11-09 17:01:00
|
相似题推荐
解答题-问答题
|
较易
(0.85)
解题方法
【推荐1】设全集
,集合
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f589cae3414ab95397a292d70f9d03cb.png)
(1)若
,求
,
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8310ebfd31045c68fd5d7647b7c55826.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f589cae3414ab95397a292d70f9d03cb.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8fdbfa7a63fdf5717d40c8c9a73ec160.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a837fe2a44f9c5ba2499e45f7056f690.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fdbbe46a98a8fdebfc46fcbc45dc88e8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】若集合
.
(1)若
,求实数
的取值范围;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/337c73953117c75ea1ffc6d5d6216d57.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2d7f14bf7f60fe19b509223284455f05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f3c6f6ba2d21a9226ad7adca563f37c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
您最近一年使用:0次
解答题-问答题
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【推荐1】设全集
,集合
,
.
(1)求
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a64dc61989ca50b9ee19d835c4ed268.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f63510211397e899dcf386cf602e8b39.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aeddd1bad9afac16a2f5e545304bac5b.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be7026b721caf58b61b1daac10d7db2b.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb9d82d19ddbec3a1751d8e91c8551e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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解答题-问答题
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【推荐2】已知集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29e5feaf522e8a652f4dbd2b478503ad.png)
(1)若
,求
;
(2)已知
,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/29e5feaf522e8a652f4dbd2b478503ad.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c55b98d426c776e11f02be37f7158b7b.png)
(2)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1172c80b0d9bcb52d4071f27171819ad.png)
![](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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【推荐1】设函数
(1)若不等式
对一切实数x恒成立,求a的取值范围;
(2)解关于
的不等式:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/87269d6002a4f78fe4ee9aa53b4cd01c.png)
(1)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e674bf3f00e008ef510c783fcfa18219.png)
(2)解关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b0f1040777491b882fa89809cdf337cd.png)
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【推荐2】已知函数
.
(1)当
时,求函数
在
上的最小值;
(2)若对任意的
,
恒成立.试求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23b404d810b3dc68e6a9643fc4c4a5a.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa4c355f11471a38f5583a434a1ddeb3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
(2)若对任意的
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/966b60302d80d8613675bb3dd5c03164.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/018857ec6e498113b3b12a730d9313da.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐1】在①
,②
,③
这三个条件中任选一个,补充在下面问题中,并完成解答.
问题:已知集合
,
,是否存在实数
,使得____,若实数
存在,求
的取值范围;若不存在,说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/96f1ba0a1129741502600e47bf058c98.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e71f62a3955d74c69bd1a6fb28327c04.png)
问题:已知集合
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fe7d8cb1bf61225b298fd14e822e72cd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/763c6d367530c99d11505d2525f3348d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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