求下列不等式的解.
(1)![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca9ae2b64213358e1da2ee4182c5ca3.png)
(2)
(1)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aca9ae2b64213358e1da2ee4182c5ca3.png)
(2)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d93e7102f133c831803ef82b933cf543.png)
更新时间:2021-09-24 18:38:34
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解答题-问答题
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【推荐1】已知命题
:实数
满足
(其中
);命题
:![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad26a31ecf27870db921b5896f28984.png)
(1)若
,
为真命题,求实数
的取值范围;
(2)若
是
的必要不充分条件,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/df59131fbd68d68adf401a32970bd9aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ad26a31ecf27870db921b5896f28984.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.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)
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【推荐1】解下列各题:
(1)因式分解:
;
(2)化简:
;
(3)解不等式:
.
(1)因式分解:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/67937744c84defc44075d1b4486c3947.png)
(2)化简:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b2d0d80ed900dfc56b4a5f87bf7cb72.png)
(3)解不等式:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3db7dc6d6d563e64470ad7c0196b75a3.png)
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解题方法
【推荐2】已知集合
,_____________.试从以下两个条件中任选一个补充在上面的问题中,并完成解答.
①函数
的定义域为集合
;
②不等式
的解集为
.
(1)当
时,求
,
;
(2)若
,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e15453c00f870d323a53c656f840dd5b.png)
①函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d97fc0021439396137e94f3c865bd2aa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
②不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf84e4d9f4a7edc2643fda82bc5e6ffa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
(1)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e94f16d5ed858699bfea5039a7bf8ae6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b3744e71abf4b43e128eabea9181b712.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/31333463f002b68938ee903c9dfbe125.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04ceb1f338fa60976229d7ec6531b626.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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