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MATRICES. EXAMPLES:. SOLUTION OF SYSTEM OF LINEAR EQUATION. ASSIGNMENT. INVERSE OF EVERY SQUARE MATRIX IF IT EXIST IS UNIQUE? IF A AND B BE TWO NON SINGULAR MATRICES OF THE SAME ORDER n,THEN (AB) -1 =B -1 A -1 ? PROVE THAT ADJOINT OF A NON SINGULAR MATRIX IS NON SINGULAR.
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