Sequence √ 3, 3, √ 15 ,√3(2n-1),…… What is 9?
The general term is an = √ 3 (2n-1)
Let an = √ 3 (2n-1) = 9
3 (2n-1) = 81
So 2N-1 = 27
So n = 14
So 9 is item 14
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