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How to find a determinant of a 2x2 matrix

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Determinant of Matrix

Determinant of Matrix 2×2 If A = \(\begin{bmatrix} a_{11} & a_{12} \\ a_{21} & a_{22} \end{bmatrix}\) is a square matrix of 2×2, then \(a_{11}a_{22} – a_{12}a_{21}\) is called the
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The determinant of a 2 x 2 matrix

3x3 Cramers Rule. 2x2 Matrix Determinants. 3x3 Matrix Determinants. 2x2 Sum of Determinants. 3x3 Sum of Determinants. 2x2 Sum of Two Determinants. 3x3 Sum of Three Determinants.

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Determinant of 2x2 Matrix

We take the product of the elements from top left to bottom right, then subtract by the product of the elements from top right to bottom left. If you want additional practice problems on