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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 :

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