Question 17, 5.2.39 HW Score: 61.89%, 14.24 of 23 points Part 2 of 3 Points: 0 of 1 Save Graph the function f(x) over the given interval. Partition the interval into four subintervals of equal length. Then add to your sketch the rectangles associated with the Riemann sum _ f(Ck ) 4Xk given that Ck is the (a) left endpoint, (b) right endpoint, and (c) midpoint of the kth subinterval. (Make a separate sketch for each set of rectangles.) K = 1 f(x) = cos x, [- It,x] b. Sketch the rectangles associated with the Riemann sum _ f(Ck) AXx given that Ck is the right endpoint of the kth subinterval. Choose the correct graph below O A. OB. O C. OD. O OF. O G. OH. OE