Find the derivative of each

Question

1) y = e^x(Sin²x)
2) y = (x²+1)e^-4
3) y = x²(e^Sinx)

Answer 1

2) 2*x*e^(-4)
3) 2*x*e^(sin(x))+x^2*cos(x)*e^(sin(x))
1) e^(x)*sin(x)^2+2*e^(x)*sin(x)*cos(x)