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Exercises on matrix addition and multiplication

  1. Given img, calculate ABC and check the validity of the associative law.
  2. Calculate the product img
  3. Given img, prove that AB = BA.
  4. Given img, calculate AB and BA.
  5. Given img, prove that A(B+C)=AB+AC.
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first published on march 15 2002 - last updated on september 01 2003