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[函数] 请大家看看【-1,0】上的表达式

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踏歌而来 posted 2014-2-11 19:59 |Read mode
Last edited by 踏歌而来 2014-2-11 20:28zhidao.baidu.com/link?url=q3IpXIj66CQt4oNf5aS … IDtgrgURr5xbWBlXHHNK

请教大家,这道题上的【-1,0】的解析式f(x)=x^2+2x是如何得到的?

是不是可以参考如下链接中的最后一个结论:
tieba.baidu.com/p/1405306703

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original poster 踏歌而来 posted 2014-2-11 21:04
看了一下http://www.docin.com/p-315369575.html,现在我明白了。

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