If-2pi-7-then-prove-that-tan-tan2-tan2-tan4-tan4-tan-7-

Tinku Tara June 4, 2023 Coordinate Geometry 0 Comments

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Question Number 100581 by Dwaipayan Shikari last updated on 27/Jun/20

If α=((2π)/7) then prove that tanαtan2α+tan2αtan4α+tan4αtanα=−7

I f α = \frac{2 π}{7}

t h e n p r o v e t h a t

t a n α t a n 2 α + t a n 2 α t a n 4 α + t a n 4 α t a n α = - 7

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