Take the function Æ(θ) = θ 2 in the interval 0 < θ < 2Ï and assume

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Take the function ƒ(θ) = θ2in the interval 0 < θ < 2π and assume it repeats itself with a period of 2π . Now show that the Fourier expansion of that function is

Σ(- 4п? 4 cos mo 4т sin me f(x) 3 т т т3D1

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Optics

ISBN: 978-0133977226

5th edition

Authors: Eugene Hecht

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