In a G.P. the th term is and the th term is…

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

Problem

In a G.P. the

4

th term is

54

and the

7

th term is

1458

. (a) Find the common ratio

r

. (b) Determine the first term

a

. (c) Write the general term

T_n

of this progression.