integration of 0 to π/2 (2tan^3x)dx answer this fast fast fast fast

hi wild shrauf, hope you are doing well.

so here how to do this, tan³x can be written as (tanx tan²x) and then instead of tan²x, write interms of sec x and then substitue secx=t for the first part, and solve tan x seperatley.

after that apply limits direclty.

hope you understood.