e的负二分之x的平方次幂的一阶导数怎么求?
人气:339 ℃ 时间:2019-12-19 09:47:39
解答
相当于y=e^u复合上u=(-1/2)x^2,用复合函数的链式法则:
{e^[(-1/2)*x^2] }'=e^[(-1/2)*x^2] * [(-1/2)*x^2]'
=-x * e^[(-1/2)*x^2]
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