If x(n) is real and odd, then what is the IDFT of the given sequence? – McqOptions

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1.	If x(n) is real and odd, then what is the IDFT of the given sequence?
A.	(j frac{1}{N} sum_{k=0}^{N-1} x(k) sin u2061 frac{2 kn}{N} )
B.	( frac{1}{N} sum_{k=0}^{N-1} x(k) cos u2061 frac{2 kn}{N} )
C.	(-j frac{1}{N} sum_{k=0}^{N-1} x(k) sin u2061 frac{2 kn}{N} )
D.	None of the mentioned
Answer» B. ( frac{1}{N} sum_{k=0}^{N-1} x(k) cos u2061 frac{2 kn}{N} )

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