## Power series expansions

Power series expansions $$1. \ e^x = 1+x+ \frac {x^2}{2!} + \frac {x^3}{3!} + \cdots + \frac {x^n}{n!}+ \cdots$$  2. \ a^x=1+ \frac {x \ln a}{1!}+ \frac…

## Geometric series

Geometric series A geometric series is a series whose related sequence is geometric. It results from adding the terms of a geometric sequence In General we write a Geometric Sequence…

## Arithmetic Series

Arithmetic Series An arithmetic series is the sum of the terms in an arithmetic sequence with a definite number of terms. In General we could write an arithmetic sequence like…