P=(7 3) 2 1 Tentukan invers dari matriks P

[tex]P = \left[\begin{array}{ccc}7&3\\2&1\end{array}\right] \\ P^{-1} = \frac{1}{7.1 - 3.2} \left[\begin{array}{ccc}1&-3\\-2&7\end{array}\right] \\ P^{-1} = \frac{1}{1} .\left[\begin{array}{ccc}1&-3\\-2&7\end{array}\right] \\ P^{-1} = \left[\begin{array}{ccc}1&-3\\-2&7\end{array}\right] [/tex]