Chapter 0: Problem 29
Give four examples of pairs of real numbers \(a\) and \(b\) such that \(|a+b|=2\) and \(|a|+|b|=8\).
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Chapter 0: Problem 29
Give four examples of pairs of real numbers \(a\) and \(b\) such that \(|a+b|=2\) and \(|a|+|b|=8\).
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Find all numbers \(x\) satisfying the given equation. $$|5 x+8|=19$$
(a) True or false: If \(a
The intersection of two sets of numbers consists of all numbers that are in both sets. If \(A\) and \(B\) are sets, then their intersection is denoted by \(A \cap B .\) In Exercises \(47-\) \(56,\) write each intersection as a single interval. $$[-8,-3) \cap[-6,-1)$$
Write each set as an interval or as a union of two intervals. $$\\{x:|x|>9\\}$$
Give an example of an open interval and a closed interval whose intersection equals the interval (2,5) .
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