∫(sec^2xsec^2x)dx
问题描述:
∫(sec^2xsec^2x)dx
答
∫(sec^2xsec^2x)dx = ∫(sec^2x(1 + tan^2x)dx
= ∫sec^2xdx + ∫sec^2x tan^2x dx
= tan x + ∫tan^2x d tan x
= tan x + (tan^3 x)/3 + C