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Matrices And Determinants

AP EAPCET 2024 - 19th May Evening Shift

MCQ+1 / -02024
If $A=\left[\begin{array}{cc}1 & 2 \\ -2 & -5\end{array}\right]$ and $\alpha A^2+\beta A=2 I$ for some $\alpha, \beta \in R$, then $\alpha+\beta=$

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