求f(x)=sin^3·1/x的导数
问题描述:
求f(x)=sin^3·1/x的导数
答
-3(sin(1/x))^2acos(1/x)/x^2过程=3(sin(1/x))^2(sin(1/x))'=3(sin(1/x))^2cos(1/x)(1/x)'=-3(sin(1/x))^2cos(1/x)/x^2
求f(x)=sin^3·1/x的导数
-3(sin(1/x))^2acos(1/x)/x^2过程=3(sin(1/x))^2(sin(1/x))'=3(sin(1/x))^2cos(1/x)(1/x)'=-3(sin(1/x))^2cos(1/x)/x^2