Paula's copy of Adaptive Marking version of Ex 6 Cofactors, Determinant and Inverse of a 3x3 matrix (CC) in Paula's workspace

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Link to this question https://numbas.mathcentre.ac.uk/question/48390/paula-s-copy-of-adaptive-marking-version-of-ex-6-cofactors-determinant-and-inverse-of-a-3x3-matrix-cc/embed/
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