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Mathematics Handbook/Multiplication

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Revision as of 17:47, 1 November 2010 by 206.130.173.55 (talk)
  1. a x 0 = 0
  2. a x 1 = a
  3. a x a = <math>a^2</math>
  4. a x -a = <math>-a^2</math>
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