View Full Version : Infinite product of consecutive odd/even, even/odd ratios
Loren Booda
Sep16-09, 06:16 PM
?=\prod_{n=1}^\infty(n/(n+1))
CRGreathouse
Sep16-09, 06:35 PM
Let
P(N)=\prod_{n=1}^N\frac{n}{n+1}.
Then you're looking for \lim_{n\to\infty}P(n).
P(1) = 1/2, P(2) = 1/2 * 2/3 = 1/3, P(3) = ... do you see what's going on here? What's the limit going to be?
rrronny
Sep16-09, 08:52 PM
\lim_{N \to \infty}P(N) = \lim_{N \to \infty} \frac{1}{N+1} = 0.
Loren Booda
Sep16-09, 11:02 PM
Thank you, CR. I just needed a little shaking up.
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