Question: 1. If F(x) is an antiderivative of f(x) and G(x) is an antiderivative of g(x), then F(x)·G(x) is an antiderivative of f(x) · g(x).
2. If F(x) and G(x) are both antiderivatives of f(x) on an interval, then F(x) - G(x) is a constant function.