I am trying to integrate an equation that has a cos(x), sin(x), cosh(x), sinh(x).  When I enter the equation in Maple and try to integrate the equation Maple just rewrites the equation without actually solving the equation.  I am not sure if I have to load a specific package to complete the integration.  Here is the equation:

H:= (cos(n*L)=cosh(n*L))/(sin(n*L)-sinh(n*L))

phi:=sin(n*x)-sinh(n*x)+H*(cos(n*x)-cosh(n*x)) 

when I write: int(phi(x), x=0..L)