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    Matrix algebra - matrix equation

    ah im sorry, I meant to put this in the question section, please move!
  2. B

    Matrix algebra - matrix equation

    A=(5, 4) I (1, 0) (4,6) (0,1) Those are matrix by the way. How do I show A^2=11A-18I? I know i'm overlooking something, but i don't know what. Any tips would be helpful
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