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**littlejodo** Write down the Riemann sum for int_2^3 2x dx using N equal subintervals, simplify, and find the limit as N approaches infinity.

I am not sure if I set the sum up properly and I am having trouble with the simplification. I don't really know what it is I am trying to isolate... N? i?

I am using the formula:

(b-a)/N Sigma_i=1^N [ f(a + i(b-a / N))]

so I have:

1/N Sigma_i=1 ^ N [ 2(2 + i(1/N))]

So where do I go from here? And also, when I take the limit as N approaches infinity, what do I do with terms including i?

Thanks!