Asked by ollie
Prove that |x+y+z| is less than or equal to |x|+|y|+|z|.
Please try to show working and explain
Please try to show working and explain
Answers
Answered by
Steve
google is your friend. Lots of help with the triangle inequality.
Once you have convinced yourself that
|x+y| <= |x| + |y|
then it is a simple extension to get to your problem.
Once you have convinced yourself that
|x+y| <= |x| + |y|
then it is a simple extension to get to your problem.
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