A system with a pre-gain, K,, and unity feedback is shown in Figure 7. A(s) is given as follow: A(\mathrm{~s})=\frac{\mathrm{K}}{(s+\beta)(\mathrm{s}+\gamma)}, \text { where } \mathrm{K}>0, \boldsymbol{\beta}: 15 \text { and

} \gamma: 6 Determine the steady-state error when the system is subject to a unit-step input. Your answer should be expressed in terms ofandHint:s) = R(s) – Y(s). Hence select K,so that the steady-stateerror is zero.