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Signals and Systems

Q1: If f(t) = - f(- t) satisfies Drichlet conditions, then f(t) can be expanded in Fourier series containing

A only sine terms

B only cosine terms

C cosine terms and constant

D sine terms and constant

ANS:A - only sine terms

Since f( - t) = - f(t) only sine terms will be present because sin (- x) = - sin x.



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