已知
且
,
:复数
,
;
:不等式
对任意实数
恒成立.
(1)若
为真命题,求实数
的取值范围;
(2)如果“
”为真命题,且“
”为假命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2725a89d93c791f7a0098f4964587905.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/58b140e221ddf537b8964fff8557cca0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0db76e6c5783dc0f09bcbd2e766e0da4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f3eacd6f343b9784304449fe4fb25ba.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e6cf0c51d6f6df04da18f448eb65faa.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)如果“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2020-07-27 20:36:02
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【推荐1】设命题p:函数
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【推荐2】已知两个命题
,如果对
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7344c9c14a37854a640a3a936e9b715.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6fa6a690c219e79ae7f55f8a49c766cf.png)
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解题方法
【推荐1】已知命题
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d9b834429b84fbbf94d948fa757caac5.png)
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![](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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名校
【推荐2】(1)关于
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/85703de9c19bf6f78d10b271fd88c81a.png)
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(2)关于
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/765f521fa075140051199a3e1908fa91.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfc45e8baaa990d9f15c763dde7adad2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec62672d0dd827f5e270a6a5ee13fa4b.png)
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解题方法
【推荐2】已知复数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19dadbf991482e61fd1a57ff76934316.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eaa72cef7840f8e14c5495a5fbcbcf49.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e81e59019989b7dc2fb59b037ef6e010.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9899763c28d7c109e9acae6cabe64f26.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
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