Estimate the area under the graph of f(x) = 6/x from x = 1 to x = 7 using 6 approximating rectangles and right endpoints.
I keep getting 1 for delta x because (B-A)/N, and then I get values 1,3,6,10,15,21. Then I plug each of those into f(x), add them all together, but I'm not getting the correct answer. Could someone let me know what I'm doing wrong? Thanks!