求导:y=3^(sin*1/x)

问题描述:

求导:y=3^(sin*1/x)

y=3^[sin(1/x)]
y'=3^[sin(1/x)]ln3*cos(1/x)*(-1/x^2)=-ln3*3^[sin(1/x)]*cos(1/x)/x^2