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If x(n)=(0,0,1,2,3,4,0,0) then x(n-2) is?

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If x(n)=(0,0,1,2,3,4,0,0) then x(n-2) is?

(a) (0,0,2,4,6,8,0,0)

(b) (0,0,1,2,3,4,0,0)

(c) (1,2,3,4,0,0,0,0)

(d) (0,0,0,0,1,2,3,4)

This question was addressed to me in exam.

My question comes from Signals, Systems and Signal Processing in portion DSP – Basic Signaling of Digital Signal Processing

1 Answer

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Right choice is (d) (0,0,0,0,1,2,3,4)

To explain: The signal x(n) is shifted right by 2.

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