# How do you find the sum of the infinite geometric series 15 - 3 + 0.6 - 0.12 + . . .?

##### 1 Answer

Feb 3, 2016

#### Explanation:

Given is the infinite geometric series

The first term is

Since it's a geometric series, we have to divide the second term by the first term, so

So,

The formula for the infinite geometric series is

We have all the required terms, so by replacing them for their respective values we have

So now you know how I got that answer up there.