求下列不等式的解集:
(1)
;
(2)
;
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b30e8c09bb277d392a7a72075101013a.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8aa4d2ec6f78d33358a65e76cdda11b8.png)
更新时间:2023-11-11 08:34:38
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【推荐1】已知
且“
”是“
”的充分不必要条件,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c69c2a2e6c6b2c53609bd86abf5b864c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a479511a50da604b2fc7398617db8387.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3eb5935678e432e6f1f3180bfdb3175.png)
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解答题-问答题
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较易
(0.85)
【推荐2】已知
.
(1)若
是
的充分条件,求实数
的取值范围;
(2)若
,命题
、
其中一个是真命题,一个是假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/030824e0f94a71b364c324eea90413d8.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6c7a1d739890a8951586e23b78b035bc.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/81dea63b8ce3e51adf66cf7b9982a248.png)
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【推荐3】已知集合![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afbb9f836e2d9f9379418225ba51956a.png)
(1)若
,求实数m的值;
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afbb9f836e2d9f9379418225ba51956a.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/906ea02bdb4a1f6dc7d477109486c6de.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b05d2be27e8f53e4de3071846dffb41.png)
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解题方法
【推荐2】已知全集
,集合
,集合
,集合
.
(1)写出集合C的所有子集:
(2)若
,求实数m的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4adca4a30b2865df1cf6e822037c370d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/82ae367cba5c816f4a77b9618dd5698c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e606793276d5377027df80e77239f423.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb144248f36bc6482101ee90d304393.png)
(1)写出集合C的所有子集:
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b453bcab0d5912d831246f91331d2cac.png)
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