Answer the following questions related to geometric progressions.

MATHEMATICS · Multi-part · A Level · Mathematics · Sequences and series · Sequences and series

Problem

Answer the following questions related to geometric progressions. (i) Define a geometric progression (G.P.). (ii) For a G.P. with consecutive terms

a_n

and

a_{n+1}

, write the expression for the common ratio. (iii) State the formula for the

n

th term of a G.P. whose first term is

a

and common ratio is

r