A) \[\frac{{{n}^{2}}h}{{{(n+1)}^{2}}s}\]
B) \[\frac{h}{({{n}^{2}}+1)\,s}\]
C) \[\frac{h}{{{(n+1)}^{2}}s}\]
D) \[\frac{h}{{{n}^{2}}s}\]
Correct Answer: B
Solution :
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