How many terms are in the G.P. 3, 6, 12, 24, ......., 384 ?
A) 8
B) 9
C) 10
D) 11
Answers
Answered by
0
Ans : 7 because my nth term of GP is (a)(r power n) where nth term is 384 and a is 3 and r is 2
Answered by
3
a = 3
r = 6/3 = 2.
t = 384
=> a * r^(n-1) = 384
=> 3 * 2^(n-1) = 384
=> 2^(n-1) = 128 = 2^(7)
=> n-1 = 7 => n = A) 8.
r = 6/3 = 2.
t = 384
=> a * r^(n-1) = 384
=> 3 * 2^(n-1) = 384
=> 2^(n-1) = 128 = 2^(7)
=> n-1 = 7 => n = A) 8.
Similar questions