已知命题
:方程
有两个大于-1的实数根,已知命题
:关于
的不等式
的解集是
,若“
或
”与“
”同时为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d12834afb9ab6b30e0c0b0a4c450c80.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/219eb990a4344e7434b3b9f2299f8593.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.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/9e26b38e357c7d985656ba7bb3c794a5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2019-10-25 20:49:08
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【推荐1】设命题
函数
的值域为
;命题
对一切实数
恒成立,若命题“
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/56a3f40808cba0d02abd64d224bb5b06.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4aa0df7f1e45f9de29e802c7f19a4f64.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36d78cb5d3673da0d6cd173f64b914ee.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8a31351c3868449fd115650c13152be8.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】设命题p:已知
,数列
是单调递增数列;命题q:函数
在
上的值域为
.
(1)若命题p为真命题,则求a得取值范围;
(2)若命题
为假命题,
为真命题,求实数a的取值集合A.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a3a7f8bfdd161b853139a07ef9c0fe35.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/83cf38189d5cbf627d2b82ac0eb76006.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1c004a2255e619d8a7bee7740a294c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04911f9626d141584495aa3d06f7e82.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4ead3fdcb8fe8f5eb3dbe7d96cabc28b.png)
(1)若命题p为真命题,则求a得取值范围;
(2)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
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解题方法
【推荐1】函数
,
,
的部分图象如图所示.
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/a5c7f850-d3d8-474b-b2b1-b55da4c8ea5c.png?resizew=214)
(1)求函数
的解析式;
(2)若函数
在区间
,
上有四个不同零点,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d965e2d0a585ed71e668adaac7cfebde.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a4456675a5dbe545462a22cef9aca8fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a90802cba13abbaae4a13e4709fc6e1e.png)
![](https://img.xkw.com/dksih/QBM/editorImg/2023/4/20/a5c7f850-d3d8-474b-b2b1-b55da4c8ea5c.png?resizew=214)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)若函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/df79ae6baca0004d97a5cd61b31616a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17fff6cad52af74309c2d811fa5e508.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/934bae4523554cea2fdde0556acb228c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】不等式
.
(1)若不等式解集是
或
,求k的值;
(2)若方程
有两根,其中一根大于1,另一根小于1,求k的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cb4da5317da5b549702acfb2707fe287.png)
(1)若不等式解集是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d23609022214097bb4dd6f13cdb1eac1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db06cda05699b53d3597cfa784a10df3.png)
(2)若方程
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36fbc83e791a60aaead95946aa1bd475.png)
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