Question: Prove the triangle inequality, which states that if x and y are real numbers, then |x| + |y| |x + y| (where |x| represents

Prove the triangle inequality, which states that if x and y are real numbers, then |x| + |y| ≥ |x + y| (where |x| represents the absolute value of x, which equals x if x ≥ 0 and equals −x if x < 0).

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