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calculate-A-n-k-0-n-C-n-k-cos-3-kx-and-k-0-n-C-n-k-sin-3-kx-




Question Number 92768 by mathmax by abdo last updated on 09/May/20
calculate A_n = Σ_(k=0) ^n  C_n ^k  cos^3 (kx)  and Σ_(k=0) ^n  C_n ^k  sin^3 (kx)
calculateAn=k=0nCnkcos3(kx)andk=0nCnksin3(kx)

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