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2. The Fourier series expansion of a signal is given below: [ 4 marks] x(t)=21[34cos25t+154cos45t+] (a) Find coefficients a0,a1,a2,a4,b1,b2,b3,b4 (b) Derive a general formula for

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2. The Fourier series expansion of a signal is given below: [ 4 marks] x(t)=21[34cos25t+154cos45t+] (a) Find coefficients a0,a1,a2,a4,b1,b2,b3,b4 (b) Derive a general formula for ak and bk (c) Determine the following Fourier series coefficients C0,C1,C2,C4 (d) Derive a general formula for Ck (e) Write down the signal complex Fourier series. Hint: 0=5, Ck=akjbk

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