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cot-2-7-cot-2-2-7-cot-2-3-7-




Question Number 129147 by Adel last updated on 13/Jan/21
cot^2 ๐›‘/7+cot^2 2๐›‘/7+cot^2 3๐›‘/7=?
cot2ฯ€/7+cot22ฯ€/7+cot23ฯ€/7=?
Commented by benjo_mathlover last updated on 13/Jan/21
 ans : 5
ans:5
Commented by Adel last updated on 13/Jan/21
pleas  solve  sir
pleassolvesir

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