# How do you find the sum of the finite geometric sequence of #Sigma 3(3/2)^n# from n=0 to 20?

##### 1 Answer

Mar 28, 2018

#### Answer:

#### Explanation:

We are asked to evaluate

This is a geometric series of the form

with

There is a formula to calculate the

Therefore:

Obviously this is going to be a pretty big number. If you punch it into a calculator, you'll find it's