Calculus: ∫sec³xdx: integral of sec³x
The tutor shows how to integrate sec³x. My post here might be a helpful warm-up towards the technique below. For ∫sec³xdx we use integration by parts: ∫uv’ = uv – ∫vu’ With sec³x we imagine v’=sec²xdx, u=secx. Note that if …