d (1/f'(x))=___dx
问题描述:
d (1/f'(x))=___dx
f'(x)是 f(x)的导数,且不等于0
并且,f''(x) 存在
答
-f"(x)/[f'(x)]^2
d (1/f'(x))=___dx
f'(x)是 f(x)的导数,且不等于0
并且,f''(x) 存在
-f"(x)/[f'(x)]^2