han0s2hiannabinee han0s2hiannabinee

12-12-2016
Mathematics

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How can I prove that: abs(x+y) less than or equal to abs(x) + abs (y)?

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juliafdawney juliafdawney

12-12-2016

|x+y| <= |x|+|y| let x=3, and let y = -5 |3-5| <= |3|+|-5| |-2| <= 3+5

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