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Prove that cot 6 degrees cot 42 degrees cot 66^ cot 78 degrees = 1
Prove that cot 6 degrees cot 42 degrees cot 66^ cot 78 degrees = 1
Eagle kings
November 01, 2021
Q.Prove that cot 6 degrees cot 42 degrees cot 66^ cot 78 degrees = 1..
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