Question: Prove that, for every x R, 2|x 1| + |2x + 1| 3 Problem 5.6 Prove that, for every r ER, 2 x - 1

Prove that, for every x R, 2|x 1| + |2x +

Prove that, for every x R, 2|x 1| + |2x + 1| 3

1| 3 Problem 5.6 Prove that, for every r ER, 2 x

Problem 5.6 Prove that, for every r ER, 2 x - 1 + 2x + 1| 23. 3 Apply the Triangle Inequality [a + b)

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