If f(x) = 2 cos(x), 0≤x≤ endpoints. Find the width of each subinterval. TT 8 X1 x2 Find the left endpoints of the subintervals where x₁ < x₂ <... 0 x3 X4 X5 = = T 4 3π 8 units R2 37 4 > evaluate the left Riemann sum with n = 6, taking the sample points to be left xX6'

Graph the function f(x) = sin x on the interval [-7,1), showing the addition of the rectangles associated with the Riemann sum> f(c,Ax, given that c, is the left endpoint of the kth subinterval. k=1 Choose the correct graph. OA. OB. Oc. Ay Ay

No → C below +11 10 MMX MM Gar G SEG pl G SE + myopenmath.com/assess2/?cid=175669&aid=1.. The rectangles in the graph below illustrate a left endpoint Riemann sum for -x² f(x) = + 4x on the interval [3, 7] 2 9 8 7 6 5 4 3- 2 1 1 2 3 4 5 6 7 V The value of this left endpoint Riemann sum is 57.6 M-Ox OX ☐ ⠀ X 0 This Riemann sum is insufficient information of the area beneath the curve on [3, 7] Question Help: Video Message instructor O th.com/a Appro 117 Mc 0:27/5:14 n ME

6. Let h be a given number in the interval (0, 7). Find the Fourier cosine series of the function [1 f (x) =- 0