9-10高一下·湖北孝感·期末
1 . 已知函数
,
(1)讨论函数
的极值情况;
(2)设
,当
时,试比较
与
及
三者的大小;并说明理由.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/9040ee6b249623b7312e200ad799f62e.png)
(1)讨论函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c9e984f50dac827078864092aa9a7bc.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ec72ca557aa4229ee871628ffcf0d8a0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a22a60d110a8453ede0f9db2c2c41ff3.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/926e244a75d7a90244c236e406d6f58b.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/008735117b891a40954cbc319bd770bb.png)
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12-13高三上·湖北省直辖县级单位·期末
2 . 设函数
,已知x=-2和x=1为
的极值点.
(1)求a和b的值;
(2)设
,试比较f(x)与g(x)的大小.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/8c46247fb543a611723eed7deadc2612.png)
![](https://img.xkw.com/dksih/QBM/2012/2/29/1570781979074560/1570781984636928/STEM/58d6bb85f52e48fdba32c0e00b1ae109.png?resizew=36)
(1)求a和b的值;
(2)设
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a7cce0535f1d868481425eeb04a4c0ba.png)
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12-13高三上·湖北黄冈·期末
解题方法
3 . 已知函数![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd8aabc2799f643b771e634a1e933bf.png)
(1)曲线
经过点P(1,2),且曲线C在点P处的切线平行于直线
,求a,b的值;
(2)在(1)的条件下试求函数
的极小值;
(3)若
在区间(1,2)内存在两个极值点,求证:
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6bd8aabc2799f643b771e634a1e933bf.png)
(1)曲线
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/eecc64c2630a668861b70df597a72f50.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/aa6342e0a5a8942cfb1cf535ceb2c50d.png)
(2)在(1)的条件下试求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ecb9f1db08bbcdfc02656ea631ae4421.png)
(3)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/d8b6894e8c345a035e89ec672503a01f.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6290dcd9e47996a9de0eb6eb213b19c1.png)
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10-11高二下·内蒙古赤峰·期中
解题方法
4 . 已知函数
.
(1)求函数
的最大值;
(2)当
时,求证:
.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/64263fe2ca48e694c87496d61e63fb9f.png)
(1)求函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/dfb2b4826ca175ea14646ddd7f9ec441.png)
(2)当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/b8e14206c7d228a7c2259a7b27da8813.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/463aff6a1273d8cc8ff4d2ee3378c2e7.png)
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