A) \[\frac{n}{{{[(n/2)!]}^{2}}}\]
B) \[\frac{(2n)!}{{{[(n/2)!]}^{2}}}\]
C) \[\frac{1.3.5...(2n+1)!}{n!}{{2}^{n}}\]
D) \[\frac{(2n)!}{{{(n!)}^{2}}}\]
E) None of these
Correct Answer: D
Solution :
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