1. ## Power Series Integration

The question is to evaluate the integral of e^x/x as an infinite series. In the explanation a 1/x pops up in the 3rd line. My question is why? I thought the 1/x was taken care of in the 2nd line.
Explanation:

2. When they took their first term "x", they then readjusted their index to get it back to 0.

3. So they did. Thanks for that.