Multiple choice question for engineering Set 1 1. Unit step response of the system described by the equation y(n) +y(n-1) =x(n) is: a) z2/(z+1)(z-1) b) z/(z+1)(z-1) c) z+1/z-1 d) z(z-1)/z+1 AnswerAnswer: a [Reason:] Response of the system is calculated by taking the z-transform of the equation and input to the transfer function in the step…
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