Question

I need help. Question below.
The answer is e-1, and I have no idea how they got that.

Answer 1

@dan815 @tHe_FiZiCx99 @mathstudent55

Answer 2

@Luigi0210

Answer 3

Try over here:
https://mathway.com/

Answer 4

Otherwise, I don't know how to do it.

Answer 5

This is a geometric series. It may be easier to write it as follows:
\[ \frac{1}{n} \sum_{k=1}^n \left(e^{\frac{1}{n}}\right)^k\]

Answer 6

i got an idea.. probably f(x)=e^x and then delta x is 1/n