If the input to a system having a transfer function of 1 + 2??? − ??? is a discrete unit step, find the first 4 terms of the output sequence. c) If the input to a system having a transfer function of...

If the input to a system having a transfer function of 1 + 2??? − ??? is a discrete unit step, find the first 4 terms of the output sequence.

Extracted text: c) If the input to a system having a transfer function of 1 + 2z1-z-2 is a discrete unit step, find the first 4 terms of the output sequence.