Mathematics Handbook/Multiplication: Difference between revisions
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== | ==Rules== | ||
#a x 0 = 0 | #a x 0 = 0 | ||
#a x 1 = a | #a x 1 = a | ||
#a x a = <math>a^2</math> | #a x a = <math>a^2</math> | ||
#a x -a = <math>-a^2</math> | #a x -a = <math>-a^2</math> | ||
Revision as of 17:48, 1 November 2010
Properties
- a x b = b x a
- a x (b x c) = (a x b) x c
Rules
- a x 0 = 0
- a x 1 = a
- a x a = <math>a^2</math>
- a x -a = <math>-a^2</math>