I have the problem: Prove: And I know I'm suppose to use the triangle inequality and the fact: and I tried starting with: But I don't know how to break this up using the triangle inequality:
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Likewise: Recall that So putting the first two together we get. .
I'm so upset with myself. I honestly tried that but never thought of moving to the LHS. :/........ Thanks so much . You're my hero.
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