Trouble finding symbolic solution for trig integral

[Grunchy]

Please see attached picture. I tried to find the symbolic solution for this trig integral, it gave me a funny solution with all complex terms (L, x and b are distance measurements, P0 is a pressure term). It finds a numeric solution just fine, but I can't get a decent symbolic solution.
Any advice appreciated!
Kevin Moorman

 

[IRstuff]

Picture? Why not the actual sheet? Or did you expect everyone to re-enter your equation by hand?

TTFN

FAQ731-376