单选题 较易0.85 引用1 组卷352
对于三次函数
,给出定义:设
是函数
的导数,
是
的导数,若方程
=0有实数解
,则称点(
,
)为函数
的“拐点”.经过探究发现:任何一个三次函数都有“拐点”;任何一个三次函数都有对称中心,且“拐点”就是对称中心.设函数
,则
=
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/4d460a1ffedc4e7c8dc3d835e979a77a.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/e4a5e3a702304d9cadfa6f386c5fb598.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/3a49459a6b5244c1b6d24f353dcd8bb7.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/f37d4188fa8943f9b4b3ef67f106a587.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/e4a5e3a702304d9cadfa6f386c5fb598.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/f37d4188fa8943f9b4b3ef67f106a587.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/c32198f9a1db4578aa5338e1f05461e9.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/c32198f9a1db4578aa5338e1f05461e9.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/a63e8d0a96aa4947a31160515ce082de.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/3a49459a6b5244c1b6d24f353dcd8bb7.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/f3e7e507da974a189dc2ab9dc2ca527f.png)
![](https://img.xkw.com/dksih/QBM/2016/12/2/1573195541856256/1573195547303936/STEM/567db13b0d8b476a971715b75ad97ed5.png)
A.100 | B.50 | C.![]() | D.0 |
16-17高三上·广东韶关·阶段练习
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