y=x2e1/x一ax(a>0,a≠1),则y'=______________.

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问题 y=x2e1/x一ax(a>0,a≠1),则y'=______________.

选项

答案[*](2x一1)一axlna

解析 y'=一axlna
=(2x一1)一axlna.
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