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Mathematics Handbook/Multiplication

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Revision as of 17:48, 1 November 2010 by 206.130.173.55 (talk) (→Rule)

Properties

  1. a x b = b x a
  2. a x (b x c) = (a x b) x c


Rules

  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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