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8.60. Show from Eqs. (8.65) and (8.66) that with x as an A-point sequence and X [k] as its N-point DFT, N-1 N-1 1 N

8.60. Show from Eqs. (8.65) and (8.66) that with x as an A-point sequence and X [k] as its N-point DFT, N-1 N-1 1 N E IX IK]I?. n=0 *=0 This equation is commonly referred to as Parseval's relation for the DFT

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