Inverse of a 2x2 matrix | Matrices | Precalculus | Khan Academy

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Example of calculating the inverse of a 2x2 matrix

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https://www.khanacademy.org/math/precalculus/precalc-matrices/inverting_matrices/e/matrix_inverse_2x2?utm_source=YT&utm_medium=Desc&utm_campaign=Precalculus

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