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notsponge [240]
3 years ago
6

Help whats the absolute value

Mathematics
1 answer:
Soloha48 [4]3 years ago
8 0
|a|=  \left\{\begin{array}{ccc}a&if&a\geq0\\-a&if&a \ \textless \  0\end{array}\right\\\\examples\\3\geq 0\to|3|=3\\102\geq0\to|102|=102\\0\geq0\to|0|=0\\-4 \ \textless \  0\to|-4|=-(-4)=4\\-105 \ \textless \  0\to|-105|=105

OK. Let's go to your question:

a) |-100| - 98 = 100 - 98 = 2

b) 5|2 - 8| = 5|-6| = 5 · 6 = 30
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