Determine whether the sequence 5,15,45,135,... is geometric and if it is, what is the common ratio

hexaedru8p

hexaedru8p

Answered question

2022-10-10

Determine whether the sequence 5,15,45,135,... is geometric and if it is, what is the common ratio

Answer & Explanation

Jase Powell

Jase Powell

Beginner2022-10-11Added 11 answers

Sequence : 5,15,45,135,.......
a 1 = 5 , a 2 = 15 , a 3 = 45 , a 4 = 135 , ... ... .
a 2 a 1 = 15 5 = 3 , a 3 a 2 = 45 15 = 3 , a 4 a 3 = 135 45 = 3 , ... . .
In this sequence the ratio of each term and the previous term is
constant , so it is geometric sequnce and constant is 3.
Common ratio is 3

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