27. The function f is continuous on the interval [2, 10] with some of its values given in the table below. 10 Use a left Riemann Sum approximation with 4 rectangles to approximate f(x) dx 2479 10 f(x) 0 38 15 18 X

Consider the function f(x) = −²+ +4. 4 x² In this problem you will calculate ["(-33 0 = 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, 4] and write your answer as a function of n without 3 signs. R₂ lim Rn n→∞ = +4) dx by using the definition ← ·b ["* ƒ(2) dx = lim [ƒ(2.)Az] n→∞ any summation