What is the sum to 'n' terms of the series\[\sqrt{5},\sqrt{20},\sqrt{4 – McqOptions

MCQOPTIONS

1.	What is the sum to 'n' terms of the series\[\sqrt{5},\sqrt{20},\sqrt{45},\sqrt{80},.....?\]
A.	\[\frac{n(n+1)\sqrt{5}}{2}\]
B.	\[\frac{n(n+1)}{\sqrt{2}}\]
C.	\[\frac{n}{2}\left( \frac{(n+1)}{\sqrt{5}} \right)\]
D.	\[n(n+1)\sqrt{5}\]
Answer» B. \[\frac{n(n+1)}{\sqrt{2}}\]

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