The total number of complex multiplications required to compute N poin – McqOptions

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1.	The total number of complex multiplications required to compute N point DFT by radix-2 FFT is?
A.	(N/2)log<sub>2</sub>N
B.	Nlog<sub>2</sub>N
C.	(N/2)logN
D.	None of the mentioned
Answer» B. Nlog<sub>2</sub>N

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