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A. |a + b| > |b| + |a|

B. |a + b| < a - b

C. |a| + |b| > 2|b|

D. |a - b| > a + b

E. |a| - |b| > |a - b|

Asked by Wyatt Williams, Last updated: May 28, 2020

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4 Answers

Ncorrect, as a can be a negative number with a smaller magnitude, in which case 2 does not work out. The correct answer is PART 4, as a+b will always be negative, while |a+b| is always positive.

Disagree with the idea that a must be positive. For example, a can be -2, b can be -10, and the rules from the question still apply.

AnnJ

Replied on Jun 02, 2017

John Adney

Replied on Jun 11, 2017

John Adney

Replied on Aug 26, 2017