The definite intergral please help me?

Question

express the limit as a definite integral on the given interval

n

Lim n→∞ ∑ e^(xi) / (1+xi) ∆x

i=1

how do you work this problem teacher tried to explain but I don't understand

Answer 1

this can't be worked until you specify the symbol xi in terms of n...the integral is that of the function e^x / [ 1+x]....if say xi =a + 7i / n then the interval is [a, a+7]