Row Space, Column Space, and Nullspace

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The columns from the original matrix which have leading ones when reduced form a basis for the column space of A.In the above example, columns 1, 2, and 4 have leading ones. Therefore, columns 1, 2, and 4 of the original matrix form a basis for the column space of A.So, 2

  Form, Space, Columns, Column space, And nullspace, Nullspace