问题标题:
帮忙求导y=y=e^(-sin^2(1/x))求导
问题描述:
帮忙求导y=
y=e^(-sin^2(1/x))求导
鲁良回答:
y‘=e^[-sin^2(1/x)]·[-2sin(1/x)]·cos(1/x﹚·﹙﹣1/x²﹚
=2e^[-sin^2(1/x)]·sin(1/x)·cos(1/x﹚/x²
=sin(2/x)e^[-sin^2(1/x)]/x²
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