$$\left[\begin{array}{c}{\phi }_2\\ {\lambda }_2\\ 1\end{array}\right]=\left[\begin{array}{cccc}1& 0& 0& 0\\ 0& 1& 0& 0\\ 0& 0& 0& 1\end{array}\right]\times \left[\begin{array}{c}{\phi }_1\\ {\lambda }_1\\ h\\ 1\end{array}\right]$$