I need help with these questions. can someone solve them?

Rutgers University-Camden 640:121 Calculus I Assignment 4.2 . Let f (9:) = 11-: on I = [1, 2]. Sketch a graph that represents the process of approximating the area of f on I using four rectangles? then use the Riemann sum to calculate this approximation using right endpoints. . Consider the graph of y = 9(3). Use the Riemann sum to calculate the area enclosed by the curve on [ 21 4] using six rectangles made by the right endpoints. . Use the Riemann sum with the standard partition and rectangles made by right endpoints for each of the following integrals {do not use any antiderivative formulas]. (3] [4(32 4:3: + 2) d2: 1 (b) /(r2 + I) d1: 2 (e) 291: 1:3] (in