已知函数
,设函数的最大值为m.
(1)求m的值;
(2)若对
,
恒成立,求实数a的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/616633caaee79e8e672e8b2c6a44a3be.png)
(1)求m的值;
(2)若对
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/511a12f75b3a170b54366d51caf098b5.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9c20cc27fabf7ac1a8217644aef44e50.png)
更新时间:2021-01-17 19:23:51
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【推荐1】如图,已知
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上不与端点重合的动点,且
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铁皮分别是这个封闭容器的一个侧面和底面,其他三个侧面用相同材料的铁皮无缝焊接密封而成(假设制作过程中不浪费材料,且铁皮厚度忽略不计).
(1)若
为
边的中点,求制作三个新增侧面的铁皮面积是多少平方米?
(2)求这个封闭容器的最大体积.
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(1)若
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(2)求这个封闭容器的最大体积.
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适中
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【推荐2】已知函数
,
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(1)当
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(1)当
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【推荐3】已知函数
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(1)求
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(2)求
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名校
【推荐1】已知函数
.
(1)当
时,求
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(1)当
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(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/39610c3302c483082273c1a6e3e5b1e2.png)
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【推荐2】已知函数
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(1)若函数
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(2)若
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解题方法
【推荐3】若函数
同时满足下列两个条件,则称
在
上具有性质
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①
在
上的导数
存在;
②
在
上的导数
存在,且
(其中
)恒成立.
(1)判断函数
在区间
上是否具有性质
?并说明理由.
(2)设
、
均为实常数,若奇函数
在
处取得极值,是否存在实数
,使得
在区间
上具有性质
?若存在,求出
的取值范围;若不存在,请说明理由.
(3)设
且
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,不等式
成立,求
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①
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②
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(1)判断函数
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(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
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(3)设
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![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
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