SOLUTION: Which sequence is geometric and has 1/4 as its fifth term and 1/2 as the common ratio?

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Question 913227: Which sequence is geometric and has 1/4 as its fifth term and 1/2 as the common ratio?
Found 2 solutions by ewatrrr, richwmiller:
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
a[n] = a[1](1/2)^(n-1)
a[5] = a[1](1/2)^(4) = 1/4
a%5B1%5D+=+%281%2F4%29%2F%281%2F16%29+=+4
{4,2,1/2,1/4,...}

Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
The other tutor forgot the third term is 1
4,2,1,1/2,1/4