Integrate a complex function

Hi :

I have a complex function, function is

F(x,y)=2*c*(cosh(x)-cosh(y))+Z*b*(exp(x)-exp(y))+b*(exp(-Z*x)-exp(-Z*y)

x and y is variable, all others are constant, I need to integrate (F)^(-0.5), could you guys can give me some suggestion?

I tried on matlab, 'int' could not give me the result, 'trapz' I also could not get results. Please help me give me some idea.