![A=\left[\begin{array}{cc}7&9\\0&9\end{array}\right]](/tpl/images/1380/4015/311bc.png)
![\to |\left[\begin{array}{cc}7&9\\0&9\end{array}\right]-\lambda \left[\begin{array}{cc}1&0\\0&1\end{array}\right] |=0\\\\\\ \to |\left[\begin{array}{cc}7&9\\0&9\end{array}\right]- \left[\begin{array}{cc}\lambda&0\\0&\lambda\end{array}\right] |=0\\\\\\\to|\left[\begin{array}{cc}7-\lambda &9\\0&9-\lambda\end{array}\right]|=0\\\\\\\to|(7-\lambda)(9-\lambda)|=0\\\\\to (7-\lambda)(9-\lambda)=0\\\\\to 7-\lambda=0 \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ 9-\lambda=0\\\\](/tpl/images/1380/4015/ca449.png)
For the matrices below. Find all (real) eigenvalues.
A= [7 9]
[0 9]...
Mathematics, 21.06.2021 17:00, atifgujar
For the matrices below. Find all (real) eigenvalues.
A= [7 9]
[0 9]
Answers: 2
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