# Thread: how do you solve series?!

1. ## how do you solve series?!

How would you go about finding the first few terms in the following series??

$\sum_{i=0}^{\infty}\frac{x^i}{i!}=e^x$

2. Originally Posted by booooostats
How would you go about finding the first few terms in the following series??

$\sum_{i=0}^{\infty}\frac{x^i}{i!}=e^x$
plug in i=0, i=1, i=2

the first 3 terms are

1, $x$, $\frac{x^2}{2}$