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Unformatted text preview: 2 6 n + 4 ) 3. Suppose the following information is given: (a) x[n] is real and odd signal. (b) x[n] has period N = 8 and Fourier coefcients a k . (c) a 9 = 3 (d) 1 8 7 n =0 | x [ n ] | 2 = 18 . Show that x [ n ] = Acos ( Bn + C ) , and nd out the value of A , B and C ....
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- Fall '08