The matrices in the state-space form of a system model are given.

a. Find the transfer function (or transfer matrix) by using Equation 4.21.

b. Verify the result of (a) by using the ss2tf command.

\(\mathbf{A}=\left[\begin{array}{ccc}0 & 1 & 0 \\ 0 & 0 & 1 \\ -\frac{2}{3} & -\frac{1}{3} & -1\end{array}\right], \mathbf{B}=\left[\begin{array}{l}0 \\ 0 \\ \frac{1}{2}\end{array}\right], \mathbf{C}=\left[\begin{array}{lll}1 & 0 & 0 \\ 0 & 0 & 1\end{array}\right], \mathbf{D}=\mathbf{0}_{2 \times 1}\)