已知函数
,
.若对
,
,使
成立,则c的取值范围是
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7999d95697122b5946a74ccf19456954.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e3a079903251346150a0c0f0127ab029.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/10eff40a2b814c72dcb07e93120e69e3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/25fdf96e9d725990adafd27e6011d8ad.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3e63bbadc6250f7139836ede33205550.png)
A.![]() | B.![]() | C.![]() | D.![]() |
更新时间:2020-04-30 06:35:54
|
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适中
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【推荐1】已知
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,
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/e1cd126613ae9b9ed55b1b2df6a71a3c.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/98ce9c8232f1f034ce71a3ca935a6788.png)
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【推荐1】已知函数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a163de08924a2b2e1a53cb59215af9d.png)
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【推荐2】已知
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【推荐1】若存在正实数
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2ea847ac3dc234b7892744e0f3af2feb.png)
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