perplexus.info :: Numbers : Trigo computation

Trigo computation (Posted on 2013-10-11)

Prove that cot 10 cot 30 cot 50 cot 70 = 3.

No Solution Yet Submitted by Danish Ahmed Khan

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	Subject	Author	Date
	Not exactly D1 solution	Jer	2013-10-11 16:49:43

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