# How do you find the sum of the infinite geometric series 1.02 + 2.04 + 4.08 + 8.16 +…?

##### 1 Answer

Nov 14, 2015

You don't.

#### Explanation:

You can only find the sum of an infinite geometric series if the ratio between each term is between -1 and 1. Or, with more rigor,

In that case the formula for the sum would be

Where

If