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find-cos-pi-7-by-solving-the-equation-x-7-1-0-inside-C-




Question Number 49963 by maxmathsup by imad last updated on 12/Dec/18
find  cos((π/7)) by solving the equation x^7 −1=0 inside C .
findcos(π7)bysolvingtheequationx71=0insideC.

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