find the value of √(3)cot20×cot40×cot80
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= Cot 3×20
So, answer is cot 60
= 1/√3
If tan / cot Cot @ × cot (60-@) × cot (60+@) = Cot 3 × @
So, answer is cot 60
= 1/√3
If tan / cot Cot @ × cot (60-@) × cot (60+@) = Cot 3 × @
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