Figure shows rectangles have been drawn to approximate integrate g(x) dx. Between the limits 0 to 6.(a) Do the rectangles represent a left or a right sum? 09 Do the rectangles lead to an upper or a lower estimate? (c) What is the value of n? (d) What is the value of delta x? (e) If g(x) = x^2 , approximate the integral g(x)dx. Between the limits 0 to 6