设命题
对任意
,不等式
恒成立;命题
方程
表示中心在原点,焦点在坐标轴上的双曲线.
(1)若命题
为真命题,则实数
的取值范围;
(2)若“
”为假命题,“
”为真命题,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51441c8788ff11be766766227793246d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/69303621c56f67b4ec4e0ac575deb554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c614b07f1d2167c043a413bf4be852c5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/fbb2191d77bc82fa548a4fb58bc07951.png)
(1)若命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)若“
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e29e70dc0bc2a9cf1a5feb67d439566.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b17312706507512c4215edf8b6e8c16d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
更新时间:2022-02-25 10:30:26
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【推荐1】已知
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.
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(2)若
是
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(1)若
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(2)若
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【推荐2】命题
:
;命题
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表示焦点在
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f4f1194234a0e75eb6cdfd31315a6f6e.png)
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名校
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【推荐1】已知
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b04606bb0e18909ad560fd997658b693.png)
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【推荐1】已知函数
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(2)当
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【推荐2】设
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(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0b550ee821ee1838384835e81fc34b67.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9e10e1c43b86a8cd4360ca9b57232164.png)
①证明函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
②对任意
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/71bb7883ea87e6275472dbe14ee62357.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b4788c7e09a775d68647c44a24d9f0c6.png)
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【推荐3】设设函数
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(1)若
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d661b7ec76d56da581c2a7f4403aeb.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
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【推荐1】已知方程
,其中
,试指出当
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解答题-问答题
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适中
(0.65)
【推荐2】设命题
是
的必要而不充分条件;
设命题
实数
满足方程
表示双曲线.
(1)若“
”为真命题,求实数
的取值范围;
(2)若“
”为假命题,“
”为真命题,求实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/02f436681bebcdb945f55dc3f11582ca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d91272e904a7f695912ad3ef37eb0f8e.png)
设命题
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ce20ef9c08e82df8c7f45bac6dd31d36.png)
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(2)若“
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