Prove the triangle inequality |a + b| |a| + |b|. Expand |a + b| 2 =
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Prove the triangle inequality |a + b| ≤ |a| + |b|. Expand |a + b|2 = (a + b)2, and use the fact that a ≤ |a|.]
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To prove the triangle inequality a b a b we can consider the following cases Case 1 a 0 and b 0 In t...View the full answer
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Related Book For 
Precalculus Concepts Through Functions A Unit Circle Approach To Trigonometry
ISBN: 9780137945139
5th Edition
Authors: Michael Sullivan
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