I need help in this question. Is about precalculus

Task 2 Finding the Area Under a Curve In this task, you will practice nding the area under a nonlinear function by using rectangles. You will use graphing skills in addition to the knowledge gathered in this unit. Sketch the graph of the function y = 201 - x2, and approximate the area under the curve in the interval [0, 20] by dividing the area into the given numbers of rectangles. Part A Use ve rectangles to approximate the area under the curve. Characters used: 0 [15000 Part B Use 10 rectangles to approximate the area under the curve. Characters used: 0 [15000 Part C Calculate the area under the curve using rectangles as their number becomes arbitrarily large {tends to innity). You do not need to sketch the rectangles. Characters used: 0 [15000