• 2022-06-01
    `\alpha _j`为四阶行列式D的第j列,(j=1,2,3,4,),且D=-5,则下列行列式中,等于-10的是( )
    A: \[\left| {2{\alpha _1},2{\alpha _2},2{\alpha _3},2{\alpha _4}} \right|\]
    B: \[\left| {{\alpha _1} + {\alpha _2},{\alpha _2} + {\alpha _3},{\alpha _3} + {\alpha _4},{\alpha _4} + {\alpha _1}} \right|\]
    C: \[\left| {{\alpha _1},{\alpha _1} + {\alpha _2},{\alpha _1} + {\alpha _2} + {\alpha _3},{\alpha _1} + {\alpha _2} + {\alpha _3} + {\alpha _4}} \right|\]
    D: \[\left| {{\alpha _1} + {\alpha _2},{\alpha _2} + {\alpha _3},{\alpha _3} + {\alpha _4},{\alpha _4} - {\alpha _1}} \right|\]
  • 举一反三