10-09-2014
Mathematics

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When are the absolute value and the opposite of a rational number equal

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Аноним Аноним

19-09-2014

|a| = -a if a < 0

The absolute value and the opposite of rational number is equal when a number is negative.

Examples:

|-7| = - (-7) = 7

|-0.5| = - (-0.5) = 0.5

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