Consider the function f(ac) = - 2 4. In this problem you will calculate 20 2 2 - 4) da by using the definition [ f( =) da = lim i= 1 The summation inside the brackets is Rn which is the Riemann sum where the sample points are chosen to be the right- hand endpoints of each sub-interval. Calculate Rn for f(x) = - > - 4 on the interval [0, 2] and write your answer as a function of n without any summation signs. Show hint Rn 28 lim Rn = 3