1.
(a) find dy/dx if e^x+e^y =xy
(b) let y=f(e^x)e^f(x), where f is a differentiable function defined on the set of real numbers, find dy/dx
2.
let f(x) = x^2e^(1/x) where h(x) is a differentiable function defined on the set of real numbers such that h'(x) = sin^2[sin(x+1)] and h(0) =3/ Find f'[h(0)]