1.

If cot−1(α)=cot−1(2)+cot−1(8)+cot−1(18)+cot−1(32)+⋯upto 100 terms, then α is:

Answer»

If cot−1(α)=cot−1(2)+cot−1(8)+cot−1(18)+cot−1(32)+⋯upto 100 terms, then α is:



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