Answer the questions given below about arithmetic and geometric progressions.
MATHEMATICS · Multi-part · A Level · Mathematics · Sequences and series · Sequences and series
Problem
Answer the questions given below about arithmetic and geometric progressions.
(i) Define an arithmetic progression (AP) and a geometric progression (GP).
(ii) The nth term of a sequence is given by an=2n+3. Determine, with reason, whether this sequence is an AP, a GP, or neither.
(iii) State the common difference or common ratio for the sequence, if it exists.