1/(2n)^2 this converges to? or not converge?
The elements get small fast, so it likely converges. Handbooks would have series expressions, one of which might match this. I do not recall how to derive the answer, however.
Compare to a p-series that, which converges for n > 1: http://en.wikipedia.org/wiki/Harmonic_series_%28mathematics%29#P-series Since for p-series, n=2 this function is 1/(2n)^2 < 1/n^2, which converges, so does 1/(2n)^2 by the comparison test: http://en.wikipedia.org/wiki/Direct_comparison_test
i have 4 options it is converges to 0 ot 1/2 or 1/4 or not converge?
Since it converges, what is the limit as \(n\to\infty\) of \(\cfrac{1}{(2n)^2}\)
what is \(\cfrac{1}{\infty}\)?
yaa n->infinite
$$ \lim_{n\to\infty}\cfrac{1}{(2n)^2}\to\cfrac{1}{\infty}=0 $$
1/infinity is infinitly small so it can be treated as zero
yes, it approaches the asymptote y=0.
mm yaa your answer it is converges to zero?
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