<prompt> Ikiwa mathbfA-1 anzapmatrix 4 0 1 -1 endpmatrix na mathbfB-1 anzapmatrix 2 -1 -1 3 endpmatrix, kisha tafuta kinyume cha mathbfA mathbfB.  <response>: Kwa ujumla, mathbfA mathbfB-1 mathbfB-1 mathbfA-1 si mathbfA -1 mathbfB-1, ambayo nianzapmatrix 2 -1 -1 3 mwishopmatrix anzapmatrix 4 0 1 -1 mwishopmatrix anzapmatrix 7 1 -1 -3 mwishopmmatrix. 