【帮忙算下四阶行列式第一行,2,0,-4,1;第二行3,6,1,1;第三行3,-13,12,-1;第四行2,3,3,1.】
阶行列式怎么算.第一行2,1,4,1,第二行3,-1,2,1,第三行1,2,3,2,第四行5,0,6,2
几个英语选择填空题with,near,nextto,after,acrossfrom,for,infrontof,down,at,about,in1.Turnright()thesecondcrossing,you'llfindthepostoffice.2.Go()thisstreet,attheendofthestreet,there'safactory()theleft.3.Istherea