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Jarak 5 dengan 0 bisa ditulis \( \displaystyle |5| \)


\( |-5|=-5 \)


\( \displaystyle |-(-5)|=5\)


\( \displaystyle  |-5|=-(-5) \)


\( \displaystyle |5|=\sqrt{5^2}  \)


\( \displaystyle |5*(-5)|=5*5=25 \)


\( \displaystyle |x|<2 \) artinya jarak suatu nilai x dengan 0 kurang dari 2

 


Jika \( \displaystyle |x|\leq a \) maka \( \displaystyle -a \leq x \leq a \)


Jika \( \displaystyle |x|\geq a \) maka \( \displaystyle x \leq -a  \cup x \geq a \)


Jika \( \displaystyle |x+y|\leq |x|+|y| \)



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About Riad Taufik LazwardiSweet

Lecturer of Mathematics at 1. Bina Tunas Bangsa (now) 2. Fitrah Islamic World Academic School (2019-2020) 3. Kalbis Institute | Managed by Binus (2018-2019) 4. Telkom University (2017-2018) 5. UIN Bandung (2015-2018)

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