若一个函数在一点可导,则自变量变化量趋向于0时该函数在该点的微分是自变量变化量的同阶无穷小?
人气:134 ℃ 时间:2019-08-21 22:42:39
解答
当导数不等于零时两者是等同阶无穷小.若导数等于零时,微分是自变量变化量的高阶无穷小.
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