Jee Main
Matrices And Determinants
JEE Main 2023 (Online) 8th April Evening Shift
MCQ+4 / -12023
If $$A=\left[\begin{array}{cc}1 & 5 \\ \lambda & 10\end{array}\right], \mathrm{A}^{-1}=\alpha \mathrm{A}+\beta \mathrm{I}$$ and \(\alpha+\beta=-2\), then \(4 \alpha^{2}+\beta^{2}+\lambda^{2}\) is equal to :
