7th terms of the series 16,8,4,2 is
Answers
Answered by
10
Answer:
1/4
Step-by-step explanation:
nth term = ar^(n-1)
a = 16 = 2^4
a2 = 8 = 2^3
a3 = 4 = 2^2
r = a2/a = 2^3/2^4 = 1/2
a7 = ar^(7-1) = 16(1/2)6 = 16×1/64 = 1/4
Answered by
6
Answer:
1/4
Step-by-step explanation:
the series is in GP with first term i.e a=16 and ratio r=1/2.
n th term for gp is "ar^(n-1)" therefore 7th term is 16×(1/2)^(7-1)
=16×(1/2)^6
=1/4
Similar questions