The sum of the first 3 terms of a geometric progression is 13 times its first term.Find the possible values of the common ratio of the geometric progression.
Hello, mastermin346!
The sum of the first 3 terms of a geometric progression is 13 times its first term.
Find the possible values of the common ratio of the geometric progression.
The first three terms are: .
Their sum is 13 times the first term: .
We have: .
Therefore: .