已知2≤x≤16,求函数
的最大值与最小值.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1c756fd661956a577c9cff0b69cd9a52.png)
更新时间:2019-11-30 20:33:04
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【知识点】 求对数函数的最值
相似题推荐
解答题-问答题
|
适中
(0.65)
解题方法
【推荐1】已知函数
,其定义域为
.
(1)求
,并判断
的单调性;
(2)将函数
的图象向左平移
个单位后,得函数的
图象,如果
为奇函数,求实数
的值;
(3)已知
,对任意
,记
的最大值为
,当实数
为何值时,
最小?
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/24bdada86abcde7149185625443eab69.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8455657dde27aabe6adb7b188e031c11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(2)将函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/942c2141d01bde6b48210c56a17fc75e.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c6bdac20e214b2cb3bd07f8d4778dcca.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1938c093dd2fbcb752d0eb7a18d143b2.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4669810732b633b60dbeaf0bf57204f6.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
(3)已知
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6b36f2f93bd1e2a3d6a74922ddfcdea0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/73f32da97596b70fb9eb83bc1543ee11.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c386fdfd49b91614d7d997a7e317eccc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a90170d7ef5ff6d1d63517c166f7a9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/77a90170d7ef5ff6d1d63517c166f7a9.png)
您最近一年使用:0次
解答题-问答题
|
适中
(0.65)
【推荐2】已知函数
为偶函数.
(1)求
的值;
(2)求
的最小值;
(3)若
对
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9016d21502bd4d1a69c68b085eea0894.png)
(1)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2c94bb12cee76221e13f9ef955b0aab1.png)
(2)求
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/09f86f37ec8e15846bd731ab4fcdbacd.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/19b408ce7e6624a047795846834b8897.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d96b743603ab1c10330622f16db78dbe.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/36a1b09c653185842513e24ebba60bb3.png)
您最近一年使用:0次