have to integrate this

(3cos4x-2sec^2(3x)+tan x) dx

now i get

3sin4x-2tan3x-3x+ln secx

is this right or do i have to treat each part as like a function of a function

and say like for the first bit

3=U and cos4x=V

and then use du and dv and work it all out then put it back togther

ty