• 2022-06-11
    Let A be a [img=41x19]1803c4e38325ee9.png[/img] matrix, then ________.
    A: If Ax=0 has only trivial solution, then Ax=b must have a unique solution.
    B: If Ax=0 has a nontrivial solution, then Ax=b must have infinitely many solutions.
    C: If Ax=b has a unique solution, then Ax=0 must have a unique solution.
    D: If Ax=0 has a nontrivial solution, then [img=55x23]1803c4e38c0c9df.png[/img] must have a nontrivial solution.
  • 举一反三