Question

what is the sum of the first 6 terms of geometric series ​
2,-6,18,-54

Answer 1

Answer:

-364

Step-by-step explanation:

First find all 6 terms.

Divide the second term by the first to get ratio n =-3

We get 2, -6, 18, -54, 162, -486

Add them all up and you get -364