O Let (eto-) is aring of complex-numberrs and M be aringof2x2 matrices aud desined as sollows. g e M, OM. show that whether ais isoMerphism or not-

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A: (C)

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Q: By evaluating the determinants, verify the addition rule for the 2 x 2 case: a12 a22 la21 a22 la21…

A: Determinate

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Q: write down in se quence steps in finding the the inverse OF matrix using the adjoint the matrix. OF

A: Let's find.

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