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Vectors and matrices › Matrices › Inverses and singular matrices

Singular 2x2 matrix parameter

High school · ●○○○○ 10 pts

For which values of λ\lambda does A−1A^{-1} not exist, where A=(λ1−1−λ)A=\begin{pmatrix}\lambda&1\\-1&-\lambda\end{pmatrix}? Give all such values in increasing order.

Enter the values in any order.

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singular matricesdeterminantsmatrix inverse