MATHEMATICS · Single correct · A Level · Mathematics · Sequences and series · Sequences and series
Problem
For a sequence the partial sum is Sn=4n−1. Which statement about the sequence is correct?
(a) It is an arithmetic sequence with common difference 4.
(b) It is an arithmetic sequence with common difference 0.
(c) It is a geometric sequence with common ratio 1.
(d) It is neither arithmetic nor geometric.