若函数
在区间
上有极值,则实数a的取值范围为_________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d6270e7d8288b293698932ad999d3d6b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/afa482d7bcaa385bfc3548b42a4bfb60.png)
更新时间:2020-01-07 10:59:05
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【知识点】 根据极值求参数
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【推荐1】已知函数
在
处取得极值,则
的值为___________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1e39baec76cb5ba74e2c70aaa936ae07.png)
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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【推荐2】若函数
在点
处存在极值
,则
______________ ,![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
_____________ .
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5244045899feede8a4d991465a88368a.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9b384412acba251d87902ab928902f16.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/33d661b7ec76d56da581c2a7f4403aeb.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/380bbacf854e30e2e747fc286d2b9997.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5ccd4162c7d09f970cb77cadacdbe521.png)
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