解题方法
1 . 已知函数
函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d21bb7459ff340b4442cb524356d19f.png)
有相同极值点.
(1)求函数
的最大值;
(2)求实数
的值;
(3)若
,不等式
恒成立,求实数
的取值范围.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c7bfe54734517500566c030c4a1561f0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d21bb7459ff340b4442cb524356d19f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5a978cb6bcc56a9c3fa2e46b6390d663.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)求实数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9629a615348db88aac72b1130b03e005.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f43e5f72312e6692d336e1d97f70735.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/f0a532e15e232cb4b99a8d4d07c89575.png)
您最近一年使用:0次
解题方法
2 . 设函数
,其中
是
的导函数.
(1)令
,猜测
的表达式并给予证明;
(2)若
恒成立,求实数
的取值范围;
(3)设
,比较
与
的大小,并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bdb9520275510c94c4308be147b2c696.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6a4b04824a308519a61318a82aa97a05.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(1)令
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/c05c278351873b3dcd981f7d0242c7a1.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/526f3008756063b59f0d6f3553c98a78.png)
(2)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5e5ad250f67b44263d35cf6061c6c587.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(3)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/655c46b33730f3a29b9ec3024df71375.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d4ace6859ede39d04d1223ef391a1a08.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/cab8acaf1c0177e49f627a569f3abdfd.png)
您最近一年使用:0次