已知
:存在
,
是方程
的两个实根,不等式
对任意实数
恒成立.
(1)若
是真命题,求
的取值范围;
(2)若
为假,
为真,求
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b1010846eeec6c9da29640f5aa3f8738.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aec101942df1c421d94ff4c0255fce5c.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77e6506f224738c4e2e0ed5b285adf3a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/128c1449259e7999fad4fc7a1fe7f0e5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/16ce6689dbac5af185f12d7756956b0b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/262d7da8f17131eef23addd1854b170d.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7ffc1bb9d53a27d484396ad74d6a26e0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f675824e539f50cec53120959d32e554.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
更新时间:2021-01-01 21:19:33
|
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解答题-问答题
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适中
(0.65)
名校
【推荐1】对于函数
,若在定义域内存在实数
,满足
,则称
为“局部奇函数”.
为定义在
上的“局部奇函数”;
曲线
与
轴交于不同的两点;
若
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为真命题,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/81dea63b8ce3e51adf66cf7b9982a248.png)
若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19539496590293d26ed927b2398f2bfc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a25790670230c92fa51c125427b42c12.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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解答题-问答题
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适中
(0.65)
解题方法
【推荐2】已知
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为真命题,求实数m的取值范围.
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9aa8a716a31b0f51b70fdf9bdb257909.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2346e88e70029b80556aec2d843f6db0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c13472bf0353e16784a22e1f890fba40.png)
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【推荐1】已知函数
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(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/be1ce3f01e2b6364f9a9fdaf197d5e29.png)
(2)对于定义在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f837c94d95e0c7bedc3b49c414a95cb2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8bf54d3f619812d0ff83426c8f215003.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/29d62f99cea4b8639c46624f719aee0e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/294f5ba74cdf695fc9a8a8e52f421328.png)
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【推荐2】二次函数
满足
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(3)设函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/51eb2613dda00677d447c986cac505bc.png)
(1)求
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(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c9d0d0e17c4af632f8ebf3e07a2514a6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e2a7a07624cc738da030ed9f2ca79e43.png)
(3)设函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/db3c4076e4cb69e01dd54775c102397b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/01b3ae7e5228fd1acb0d46f6941143a7.png)
您最近一年使用:0次
解答题-问答题
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适中
(0.65)
名校
解题方法
【推荐1】已知定义域为
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(1)求
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,使
成立,求
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cf3ed15aa3dcc4211fb520b5b942c989.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f144eb16ccabdaf4fecd6006e46c8e9.png)
(1)求
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(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若存在
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98761ab330c4a2e9d4c2cc7c55e7c5fe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d597aeca56c56462b4c809a2f7af89c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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解答题-证明题
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适中
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解题方法
【推荐2】设函数
是定义在
上的奇函数,且
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(1)求函数
的解析式;
(2)判断
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(3)解不等式
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c8d98ee11235b9ff6c47a5ab20b99c7.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/249a976e88133f3b3733f09137cf5c42.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)判断
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/455ba3d3e46977fcbe5b71f8bb9df4be.png)
(3)解不等式
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b987e21c17a4bf472b2cf30b39033e9.png)
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