SOLUTION: Write an explicit formula for 1/2, 1/4, 1/6, 1/8, 1/10... I have tried a subscript n= 1/2n

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Question 870504: Write an explicit formula for 1/2, 1/4, 1/6, 1/8, 1/10...
I have tried a subscript n= 1/2n
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
If you mean to say 1%2F%282n%29, then you have to write 1/(2n) to make the 'n' in the denominator. If you forget the parenthesis, then 1/2n means expr%281%2F2%29n and you can see that n is no longer in the denominator.


The answer is definitely a%5Bn%5D+=+1%2F%282n%29 where n starts at n = 1 (and n is a positive integer)