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Originally Posted by Random Variable Show that ? Apply a variation of the triangle inequality to get
Last edited by Chris L T521; Aug 20th 2009 at 04:33 PM. Reason: fixed some mistakes
Originally Posted by Chris L T521 Apply a variation of the triangle inequality to get Thanks. I don't why I never heard of the reverse triangle inequality (the proof of which is quite simple).
Originally Posted by Random Variable Thanks. I don't why I never heard of the reverse triangle inequality (the proof of which is quite simple). I'm not sure if this will change things... I used the part highlighted in red: . So it should technically be . If , then it would be ok to leave it as ...
Originally Posted by Chris L T521 I'm not sure if this will change things... I used the part highlighted in red: . So it should technically be . If , then it would be ok to leave it as ... I was just about to ask if it matters if is greater than or less than . For this particular problem it's less than .
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