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The Taylor series for f(x)=cos(x) at a= π/4 is ∑ n=0 ∞ c n (x− π...

The Taylor series for f(x)=cos(x) at a= π/4 is ∑ n=0 ∞ c n (x− π 4 ) n . ∑n=0∞cn(x−π4)n. Find the first few coefficients.

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