A) \[\left( 1-1/{{n}^{2}} \right)\]
B) \[1/\left( 1-{{n}^{2}} \right)\]
C) \[\sqrt{\left( 1-1/{{n}^{2}} \right)}\]
D) \[1/\sqrt{\left( 1-{{n}^{2}} \right)}\]
Correct Answer: A
Solution :
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