A geometric progression has first term and common ratio
MATHEMATICS · Single correct · A Level · Mathematics · Sequences and series · Sequences and series
Problem
A geometric progression has first term 7 and common ratio −3. If every term is multiplied by 2, what are the first term and common ratio of the new progression?
(a) First term 14, common ratio −6
(b) First term 14, common ratio −3
(c) First term 14, common ratio 3
(d) First term 3.5, common ratio −3