Let 9: R2 R be defined by g(x1, x2) = (e sin x2, cos(x1)e2) and let f: R R be defined by f(y) = ||y||2. Let h = fog be the composition of f with g, i.e. h(x) = f(g(x)) 1. Compute the derivative Df 2. Compute the derivative Dg 3. Use the chain rule to compute the derivative Dh