hi pls answer them all, thanks in advance

1. Approximate the area beneath the curve and above the x-axis using (a) Left Riemann Sum, (b) Right Riemann Sum, and (c) Midpoint Riemann Sum of the function y = ; x* + 2 from x = 0 to x = 2 and use n = 4. 2. Using integration, find the area enclosed by the curve y = 10x' and the x-axis from x = = = tox =; 3. Find the area of the region bounded by these functions y = x- and y = 2x. Hint. Find first their intersections