Question

Find the a7, the 7th term, of the geometric sequence 1, 1/2, 1/4, 1/8, ....

Answer 1

I think that the answer is 1/16

Answer 2

you are multiplying by 1/2 each time

1/8 is the 4th term

(1/8)(1/2) = 1/16 (5th term)

(1/16)(1/2) = 1/32 (6th term)

(1/32)(1/2) = 1/64 (7th term)

You're 7th term is 1/64

hope this helps