Hey, Having trouble with these two problems: 1. If f(x) = ln(x)/x (3 <= x <= 10), find an expression for the area under the graph of f as a limit. Do not evaluate the limit. My answer: Change in x = (10 - 3)/n = 7/n, so: (7/n)[Sigma i = 0 to n](ln(7/n)/(7/n)) I feel like this isn't right for some reason. 2. Determine a region whose area is equal to: lim as n->infinity of (Sigma i = 0 to n)(4pi/4n)(tan (i*pi/4n)) pi/4n is constant so that is the change in x. Don't know how to go any further here... And help appreciated.