Question

how to evaluate the limit (sin2h*sin3h)/h^2 as x approaches 0

Answer 1

We have an indeterminate form here (0/0). So, we may use l'Hopital's Rule. Since using l'Hopital's rule once does no help, do it a second time. Try that! :)

Answer 2

how would I combine the sin2h with the sin3h?

Answer 3

I apologize, I'm not exactly sure what you mean by "combine".