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[函数] 图中画框的部分怎么解释?

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guanmo1 posted 2019-6-29 21:59 |Read mode
导数.png

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爪机专用 posted 2019-6-29 22:53
这都要解释?底在y轴上的等腰三角形啊………………

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original poster guanmo1 posted 2019-6-29 23:56
回复 2# 爪机专用


   

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走走看看 posted 2019-6-30 06:32
回复 1# guanmo1


    这道题出得好。

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