• 2022-06-08
    写出下列对称矩阵对应的二次型:[tex=7.786x2.786]sSXBpxJWudVpH1R35o4LnBaxxHbOdrvgAga+0C8+JXk0nbPx1jt5PVJqagTPmmv4/I0iARjR1gByEtZUEspxgg==[/tex]