5.4.2 The nth Term of Geometric Progressions
(C) The nth Term of Geometric Progressions
a = first term
r = common ratio
n = the number of term
Tn = the nth term
Find the given term for each of the following geometric progressions.
(a) 8 ,4 ,2 ,…… T8
(D) The Number of Term of a Geometric Progression
Smart TIPS: You can find the number of term in an arithmetic progression if you know the last term
Find the number of terms for each of the following geometric progressions.
(a) 2, 4, 8, ….., 8192
(E) Three consecutive terms of a geometric progression
If e, f and g are 3 consecutive terms of GP, then
If p + 20, p − 4, p −20 are three consecutive terms of a geometric progression, find the value of p.