<prompt> Ikiwa mathbfA-1 anzapmatrix -4 1 0 2 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 -4 1 0 2 mwishopmatrix2 anzapmatrix16 -2 0 4 mwishopmmatrix. 