integral of symbolic function

Hey everybody,

I tried to integrate following equation with symbolic functions (i.e):

syms x(t) y(t)
f=sin(x)^2*diff(y,t)
F=int(f)

but matlab response only with the same equation and a integration sign in front of it.

Can somebody help me, how to show the right Integral of it without integral sign?

Thank you.

[madhan ravi]

What do you expect the result to be?

[Walter Roberson]

There is no closed form for that in general. When y is given then sometimes there is a solution.