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find-C-n-1-cos-nx-n-2-dx-and-S-n-1-sin-nx-n-2-




Question Number 38107 by maxmathsup by imad last updated on 21/Jun/18
find C = Σ_(n=1) ^∞    ((cos(nx))/n^2 )dx  and S=Σ_(n=1) ^∞   ((sin(nx))/n^2 )
findC=n=1cos(nx)n2dxandS=n=1sin(nx)n2

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