A) \[\sqrt{2n+1}\]
B) \[\frac{1}{2}\sqrt{2n+1}\]
C) \[\sqrt{2n+1}-1\]
D) \[\frac{1}{2}(\sqrt{2n+1}-1)\]
Correct Answer: D
Solution :
Putting \[n=1\] \[s=\frac{1}{1+\sqrt{3}}=\frac{\sqrt{3}-1}{2}\] On checking, (d) is the correct option.
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