Seudónimo Seudónimo

25-08-2016
Mathematics

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evaluate each expression |18|
|2|+|-13|=
|-20|-|17|=

Respuesta :

dalendrk dalendrk

30-08-2016

[tex]|a|= \left\{\begin{array}{ccc}a&for\ a\geq0\\-a&for\ a \ \textless \ 0\end{array}\right\\\\|2|+|-13|=2+13=15\\\\|-20|-|17|=20-17=3[/tex]

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