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S1 and S2 are two DT systems which are connected together to form a new system. Consider the following statements: i) If S1 and S2 are non-causal, then S is non-causal ii) If S1 and/or S2 are unstable, then S is unstable The correct statement from the above is ____________

S1 and S2 are two DT systems which are connected together to form a new system. Consider the following statements: i) If S1 and S2 are non-causal, then S is non-causal ii) If S1 and/or S2 are unstable, then S is unstable The correct statement from the above is ____________ Correct Answer Neither i nor ii

S1: y = x …… (Non-causal) S2: y = x ……… (Causal) S: y = x which is causal ………. (False) S1: y = ex stable, S2: y = ln(x) ……… (Unstable) But S: y = x ………. (Stable, false)

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