B/Express f(x) = cos wx, -1 < x < π, as a Fourier series. Hence prove that 2w π(W² - 1²) cot wπ = + 2w 2w + π(ω2 – 22) 'π(ω2 – 32) + ...

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B/ Express f(x) = cos wx, - < x < π, as a Fourier series. Hence prove that
2ω
2w
2ω
+
+
π(ω2 – 12) 'πω2 – 22) 'π(ω2 – 32)
cot wπ =
+ ...
Transcribed Image Text:4 B/ Express f(x) = cos wx, - < x < π, as a Fourier series. Hence prove that 2ω 2w 2ω + + π(ω2 – 12) 'πω2 – 22) 'π(ω2 – 32) cot wπ = + ...
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