The Determinant of a Matrix

A matrix has an inverse if the matrix is square and is non-singular (the determinant ( 0). Example: Determine whether the following matrices have an inverse. If the matrix does not have an inverse, state why. a) b) c) Finding the Inverse of a 2 X 2 matrix. Let and suppose D = ad – cb ( 0. Then exists and is given by . Example ................
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