If _ n ( n^ 2 - n - 1 + n + ) = 0 then 8( + ) is equal to :

JEE Main 2022 Mathematics question

If then is equal to :

Answer: (3)

− (1/2)(n + − …] = n − 1/2 − 1/(2n) + …. So the limit

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Question ID VK-024808