Question

Find area under the curve for g(x)=x on the interval [0,1]. Upper sum =1/2 + 1/(2n).
Use the fact that the Upper sum - Lower sum is a telescoping sum to find the Lower sum.

Thanks for any help.

Answer 1

the lower sum should equal 1/2 - 1/(2n)

Answer 2

I misunderstood the problem, Honestly, I can't remember how to solve it :-( Sorry, mate. Will try to look into it.

Answer 3

Here is a write-up.