Asked by B.B.
Can someone please explain this to me: Does |n+m|=|n| + |m| for all integers n and m? If so, give some examples. If not, give a counterexample.
Answers
Answered by
Marth
Simply substitute numbers of opposing signs for n+m.
For example, n=-1, and m = 2
|n+m| = |-1+2| = |1| = 1
|n| + |m| = |-1| + |2| = 1+2=3
For example, n=-1, and m = 2
|n+m| = |-1+2| = |1| = 1
|n| + |m| = |-1| + |2| = 1+2=3
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