[最も欲しかった] integral de tan^2 x 578186-Integral de tan^2 x sec^3 x dx JunTakashimanlq

$$\int sec^2x \tan^2x dx = tan^2x 2\int \sec^2x \tan^2x dx$$ You can move the $ 2\int \sec^2x \tan^2x dx$ to the left hand side of the equat...