Q1 (2 points) a) Use a Riemann sum with 5 rectangles and left-hand endpoints to approximate the area between the x- axis and f(x) = In(x + 2), where x E [0, 15]. Round your answer to two decimal places. b) Is your answer in a) an overestimate or an underestimate for the actual area? Explain. (Your explanation should not involve integration or other calculation of the exact area.)