A system is described by:
y[n] − 5y[n − 1] + y[n − 2] = 3x[n − 1] − 4x[n − 2]
Is the system linear or non linear? Variant or shit invariant?
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For the system described by y[n] = n2 x[n – 1], determine whether it is a) Linear or not b) Time-invariant or not c) BIBO stable or not d) Causal or not and e) Memoryless or not
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