<prompt> Ikiwa mathbfA-1 anzapmatrix 2 5 -1 -3 endpmatrix, basi tafuta kinyume cha mathbfA2.  <response>: Kumbuka kuwa mathbfA-12 mathbfA2 mathbfA-1 mathbfA-1 mathbfA mathbfA mathbfI, kwa hivyo kinyume cha mathbfA2 nimathbfA-12 anzapmatrix 2 5 -1 -3 mwishopmatrix2 anzapmatrix -1 -5 1 4 mwishopmmatrix. 