If cot^(-1) ( alpha) = cot^(-1)(2) + cot...

If `cot^(-1) ( alpha) = cot^(-1)(2) + cot^(-1)(8) + cot^(-1)(18) + cot ^(-1)(32) + "…………"` upto 100 terms , then `alpha` is `:`

A

1.01

B

1.02

C

1

D

1.03

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The correct Answer is:

A

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