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A real valued signal x(n) is called as anti-symmetric if ___________(a) x(n)=x(-n)(b) x(n)=-x(-n)(c) x(n)=-x(n)(d) none of the mentionedI had been asked this question by my college director while I was bunking the class.I want to ask this question from Discrete Time Signals topic in chapter Discrete Time Signals and Systems of Digital Signal Processing

Answer»

The correct answer is (B) x(n)=-x(-n)

EASY explanation: ACCORDING to the definition of anti-symmetric signal, the signal x(n) should be symmetric over origin. So, for the signal x(n) to be symmetric, it should SATISFY the condition x(n)=-x(-n).



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