Hi,

Im trying to solve the following, Integrate[x^2*Cos[w*x], x], lower limit = 0, upper limit = infinity,

Im getting (2*x*Cos[w*x])/w^2 + ((-2 + w^2*x^2)*Sin[w*x])/w^3

I need to evaluate this now between the lower limit of 0 and upper limit of infinity, but am having trouble,

any thoughts?

Thanks!!.....