Find $P^{-1},$ if it exists,given $P=\left[\begin{array}{cc}10 & -2 \\ -5 & 1\end{array}\right].$
- A$\left[\begin{array}{cc}1 & 0 \\ 0 & 1\end{array}\right]$
- B$\left[\begin{array}{cc}0 & 1 \\ 1 & 0\end{array}\right]$
- CDoes not exist
- D$\left[\begin{array}{cc}1 & 2 \\ 5 & 10\end{array}\right]$
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