题型:解答题-问答题
难度:0.4
引用次数:512
题号:6422430
已知函数
R.
(1)若
,
① 当
时,求函数
的极值(用
表示);
② 若
有三个相异零点,问是否存在实数
使得这三个零点成等差数列?若存在,试求出
的值;若不存在,请说明理由;
(2)函数
图象上点
处的切线
与
的图象相交于另一点
,在点
处的切线为
,直线
的斜率分别为
,且
,求
满足的关系式.
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/ac068fe39e182e317a29263a479cc5c1.png)
(1)若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/a644b803d76c409ea0d8245b18ad0791.png)
① 当
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/94440d3e4c073f94f2b266ff99d50e74.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
② 若
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/0a6936d370d6a238a608ca56f87198de.png)
(2)函数
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5963abe8f421bd99a2aaa94831a951e9.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/2e9b0f5f44abbc6544a2f672b025b013.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/4fe7d5809da02c15a43a0e9a898b9086.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/7f9e8449aad35c5d840a3395ea86df6d.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/3f6f17bc385bafb37e8f964e5eb99cd0.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/1f081d3013df8536a50f9aa730f924b4.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/6397afb309b18e6d8a98e1c7e62cfa61.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/bc51582dc39e05bc1f8153fa6a5c2667.png)
![](https://staticzujuan.xkw.com/quesimg/Upload/formula/5d701d16d9f318ee8fa779f5b961d64c.png)
更新时间:2018-05-08 08:02:14
|
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