What are the Fourier series coefficients for the signal x(n)=cosπn/3?
A. c1=c2=c3=c4=0,c1=c5=1/2
B. c0=c1=c2=c3=c4=c5=0
C. c0=c1=c2=c3=c4=c5=1/2
D. None of the mentioned
Answer:A
What are the Fourier series coefficients for the signal x(n)=cosπn/3?
A. c1=c2=c3=c4=0,c1=c5=1/2 B. c0=c1=c2=c3=c4=c5=0 C. c0=c1=c2=c3=c4=c5=1/2 D. None of the mentioned
Explanation: In this case, f0=1/6 and hence x(n) is periodic with fundamental period N=6.