• 2022-06-29
    求解线性方程组[img=284x71]1803072ce27e8dd.png[/img]的特解
    A: A={{2,3,9},{7,5,4},{3,2,1},{1,2,7}};B={6,4,2};LinearSolve[A,B]
    B: A={{2,3,9},{7,5,4},{3,2,1},{1,2,7}};B={6,4,2};RowReduce[A,B]
    C: A={{2,3,9},{7,5,4},{3,2,1},{1,2,7}};B={6,4,2};LinearSolve[A,B]+NullSpace[A]
    D: A={{2,3,9},{7,5,4},{3,2,1},{1,2,7}};B={6,4,2};NullSpace[A]
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