Question

An input x(n) = e inn is applied to two systems S i and S 2 . The output for s 1 is 1 and for S 2 is (- 1) ^ n . Which of the following statements is correct?
Both S 1 and S 2 are LTI
systems s 1 is lfloor T1 but S 2 is not LTI
S 1 is not LTI but S 2 is LTI
Neither S 1 nor S 2 is LTI

Answer 1

Answer:

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