已知函数
.
(1)若对任意
,都有
成立,求实数a的取值范围;
(2)解关于x的不等式
,其中实数
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33f9c188f23c6ec505b1758a6dbd2d08.png)
(1)若对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24a57996290794e082b21d8f1dfc322a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fb047e6010caf515b458b132b00f7457.png)
(2)解关于x的不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5b666663ce3537a634a3b427b418eb62.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/22dd8b3dc4c609bab82d356a5cc2208d.png)
更新时间:2022-10-11 17:42:40
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适中
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【推荐1】已知集合
,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/04951d9dc5f099604b33bb8f6515e873.png)
(I)当
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(II)求使
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(I)当
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(II)求使
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/caf22d7d1a965bda25168a233fb6290c.png)
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适中
(0.65)
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【推荐1】已知命题
函数
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(1)命题
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(2)若命题
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
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(1)命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
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(2)若命题
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】(1)求函数
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(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4bae8d4fab18fd5853910f430c092b93.png)
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适中
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【推荐3】已知函数
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(1)求不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2fbc901cbdb68130ddac3174583dd93c.png)
(2)若不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/881584368f18e6119d107665bd63edc2.png)
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