Question

how do i integrate : costheta(tantheta+sectetha)

Answer 1

can you write the equation out? It isn't clear what function is acting on what.

Answer 2

\[\cos \Theta(\tan \Theta+\sec \Theta)\]

Answer 3

\[\tan (\theta)=\sin (\theta)/\cos (\theta)\] and \[\sec (\theta) = 1/\cos (\theta)\]

if you multiply out, you should be able to integrate it.