∫tan^2xdx=∫(sec^2x-1)dx
问题描述:
∫tan^2xdx=∫(sec^2x-1)dx
答
∫tan^2xdx=∫(sec^2x-1)dx=∫sec^2xdx-∫1dx=tanx-t+C
∫tan^2xdx=∫(sec^2x-1)dx
∫tan^2xdx=∫(sec^2x-1)dx=∫sec^2xdx-∫1dx=tanx-t+C