What is the magnitude of H(‚âà√¨‚àö¬¢) for the three poin – McqOptions

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1.	What is the magnitude of H(‚âà√¨‚àö¬¢) for the three point moving average system whose output is given by y(n)=1/3[x(n+1)+x(n)+x(n-1)]?$
A.	1/[3\|1-2cos‚âà√¨‚àö¬¢\|].
B.	1/[3\|1+2cos‚âà√¨‚àö¬¢\|].
C.	\|1-2cos‚âà√¨‚àö¬¢\|.
D.	\|1+2cos‚âà√¨‚àö¬¢\|.
Answer» C. \|1-2cos‚âà√¨‚àö¬¢\|.

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