In a geometric progression the first term is 5 and the fourth term is 135.
MATHEMATICS · Multi-part · A Level · Mathematics · Sequences and series · Sequences and series
Problem
In a geometric progression the first term is 5 and the fourth term is 135.
(a) Find the common ratio of the progression given that the first term is 5 and the fourth term is 135.
(b) Determine the position (value of n) of the term equal to 3645.