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
Answer:A
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
Explanation: Response of the system is calculated by taking the z-transform of the equation and input to the transfer function in the step input.