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Matrices And Determinants

AP EAPCET 2023 - 15th May Evening Shift

MCQ+1 / -02023

If $A=\left\{\left(\begin{array}{ll}a & b \\ c & d\end{array}\right): a, b, c, d \in\{-1,1\}\right\}$, then the number of singular matrices in $A$ is


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