(a) Let a denote a real number, where 1 (b) After writing z = eiθ in the...
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(b) After writing z = eiθ in the equation obtained in part (a), equate real parts and then imaginary parts on each side of the result to derive the summation formulas
where 1
Transcribed Image Text:
a cos θ-a 1-2a cos θ asin θ 1-2a cos θ + a2 t-1
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Related Book For
Complex Variables and Applications
ISBN: 978-0073051949
8th edition
Authors: James Brown, Ruel Churchill
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