Question

Find an explicit formula for the geometric sequence 12,24,48,96. b(n)=

Answer 1

Hello from MrBillDoesMath!

Answer:

b(n) = 12 * 2^(n-1)  where n >=1

Discussion:

12* 2 = 24  (second term in sequence)

24 * 2 = 48 (third term in sequence)

48 *2  = 96  (fourth term in the sequence)

So b(n) = 12 * 2^(n-1)  where n >=1

b(1) = 12 * 2^ 0 = 12 * 1 = 12

b(2) = 12 * 2^(2-1) =12 * 2 - 24,

Thank you,

MrB