# In order to prove the crucial formulas (5.83)0[5.85) for the Fourier coefficients a n and b n ,… 1 answer below »

In order to prove the crucial formulas (5.83)0[5.85) for the Fourier coefficients an and bn, you must first prove the following:

(This integral is obviously τ if m = n = 0.) There is an identical result with all cosines replaced by sines, and finally

where as usual w = 2π/τ. Prove these.

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