What is the common ratio of the sequence #-164, -82, -41, -20.5...#?
2 Answers
Feb 16, 2016
Common ratio:
Explanation:
If
We could verify this result by checking that for
and
(which, fortunately, they do).
May 12, 2016
Explanation:
To find the common ratio in a GP, divide a term by the term preceding it. Test that this gives the same answer for any two consecutive terms.