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