question 22 only. Please explain step by step, and write out the left and right sum fully and evaluate. List the left and right sum, so I understand which side is which. Thank you.

Let In denote the left-endpoint sum using n subintervals and let R, denote the corresponding right-endpoint sum. In the following exercises, compute the indicated left and right sums for the given functions on the indicated interval. 12. La for f (z) = on [2, 3] 13. RA for g (r) = cos (ma) on [0, 1] 14. L6 for f (x) = ( x 1) on [2, 5] 15. Re for f (I) =4 I(2 1) On [2, 5] 16. RA for - on [-2, 2] 17. La for -on [-2, 2] 18. Ra for r2 - 2x + 1 on [0, 2] 19. La for 12 - 2x + 1 on [0, 2] 20. Compute the left and right Riemann sums-LA and Ra, respootively- for f (2) = (2 -(z/) on [-2, 2]. Compute their average value and compare it with the area under the graph of f. 21. Compute the left and right Riemann sums-Lo and Ro, respectively for f (2:) = (3 - 13 - z() on [0, 6/. Compute their average value and compare it with the area under the graph of f. 22. Compute the left and right Riemann sums-L, and R4, respectively- for f (z) = v4 - 12 on [-2, 2] and compare their values