1 Answer

MimiEAM · Answer 1 · 2021-09-12T09:17:33+0000

$\left[\begin{array}{ccc}0&-1\\-3&1\end{array}\right]$

-y

-2x + y

- y determinant

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$\left[\begin{array}{ccc}2&0\\1&-3\end{array}\right]$

2x

x-3y

- x determinant

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$\left[\begin{array}{ccc}2&-1\\1&1\end{array}\right]$

2x -y

x + y

-system determinant

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