Explanation Given information: Given intervals are I 1 = ( − ∞ , 7 ) ; I 2 = ( − ∞ , 3 ) Calculation: A ∪ B represents the union of sets A and B and the set includes the elements that are either in set A or set B. A ∩ B represents the intersection of sets A and B and the set includes the elements that are common to both sets A and B. The union is given by the interval that includes elements obtained by combing both intervals i.e. I 1 ∪ I 2 = ( − ∞ , 7 ) ∪ ( − ∞ , 3 ) I 1 ∪ I 2 = ( − ∞ , 7 ) The intersection is given by the interval that is in common to both the intervals i

Precalculus: A Unit Circle Approach, Books a la Carte Edition plus MyMathLab with Pearson eText -- Access Card Package (2nd Edition)

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Chapter A.1, Problem 21E

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To find the union and the intersection of the given intervals.

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Chapter A.1, Problem 20E

Chapter A.1, Problem 22E

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Chapter A.1 Solutions

Precalculus: A Unit Circle Approach, Books a la Carte Edition plus MyMathLab with Pearson eText -- Access Card Package (2nd Edition)

Ch. A.1 - In Exercises 1-4, write each of the following...Ch. A.1 - In Exercises 1-4, write each of the following...Ch. A.1 - In Exercises 1-4, write each of the following...Ch. A.1 - Prob. 4E Ch. A.1 - Prob. 5E Ch. A.1 - Prob. 6E Ch. A.1 - Prob. 7E Ch. A.1 - Prob. 8E Ch. A.1 - In Exercises 5-10, classify each of the following...Ch. A.1 - Prob. 10E

Ch. A.1 - Prob. 11E Ch. A.1 - Prob. 12E Ch. A.1 - Prob. 13E Ch. A.1 - Prob. 14E Ch. A.1 - Prob. 15E Ch. A.1 - Prob. 16E Ch. A.1 - Prob. 17E Ch. A.1 - Prob. 18E Ch. A.1 - Prob. 19E Ch. A.1 - Prob. 20E Ch. A.1 - Prob. 21E Ch. A.1 - Prob. 22E Ch. A.1 - Prob. 23E Ch. A.1 - Prob. 24E Ch. A.1 - In Exercises 25-38, rewrite each expression...Ch. A.1 - Prob. 26E Ch. A.1 - Prob. 27E Ch. A.1 - Prob. 28E Ch. A.1 - Prob. 29E Ch. A.1 - Prob. 30E Ch. A.1 - Prob. 31E Ch. A.1 - Prob. 32E Ch. A.1 - Prob. 33E Ch. A.1 - Prob. 34E Ch. A.1 - Prob. 35E Ch. A.1 - Prob. 36E Ch. A.1 - Prob. 37E Ch. A.1 - Prob. 38E Ch. A.1 - Prob. 39E Ch. A.1 - Prob. 40E Ch. A.1 - Prob. 41E Ch. A.1 - Prob. 42E Ch. A.1 - Prob. 43E Ch. A.1 - Prob. 44E Ch. A.1 - Prob. 45E Ch. A.1 - Prob. 46E Ch. A.1 - Prob. 47E Ch. A.1 - Prob. 48E Ch. A.1 - Prob. 49E Ch. A.1 - Prob. 50E Ch. A.1 - Prob. 51E Ch. A.1 - Prob. 52E Ch. A.1 - Prob. 53E Ch. A.1 - Prob. 54E Ch. A.1 - Prob. 55E Ch. A.1 - Prob. 56E Ch. A.1 - Prob. 57E Ch. A.1 - Prob. 58E Ch. A.1 - Prob. 59E Ch. A.1 - Prob. 60E Ch. A.1 - Prob. 61E Ch. A.1 - Prob. 62E Ch. A.1 - Prob. 63E Ch. A.1 - Prob. 64E Ch. A.1 - Prob. 65E Ch. A.1 - Prob. 66E Ch. A.1 - Prob. 67E Ch. A.1 - In Exercises 59-68, evaluate each expression for...Ch. A.1 - Prob. 69E Ch. A.1 - Prob. 70E Ch. A.1 - Prob. 71E Ch. A.1 - Prob. 72E Ch. A.1 - Prob. 73E Ch. A.1 - Prob. 74E Ch. A.1 - Prob. 75E Ch. A.1 - Prob. 76E Ch. A.1 - Prob. 77E Ch. A.1 - Prob. 78E Ch. A.1 - Prob. 79E Ch. A.1 - Prob. 80E Ch. A.1 - Prob. 81E Ch. A.1 - Prob. 82E Ch. A.1 - Prob. 83E Ch. A.1 - Prob. 84E Ch. A.1 - Prob. 85E Ch. A.1 - Prob. 86E Ch. A.1 - Prob. 87E Ch. A.1 - Prob. 88E Ch. A.1 - Prob. 89E Ch. A.1 - Prob. 90E Ch. A.1 - Prob. 91E Ch. A.1 - Prob. 92E Ch. A.1 - Prob. 93E Ch. A.1 - Prob. 94E Ch. A.1 - Prob. 95E Ch. A.1 - Prob. 96E Ch. A.1 - Prob. 97E Ch. A.1 - Prob. 98E Ch. A.1 - Prob. 99E Ch. A.1 - Prob. 100E Ch. A.1 - Prob. 101E Ch. A.1 - Prob. 102E Ch. A.1 - Prob. 103E Ch. A.1 - Prob. 104E Ch. A.1 - Prob. 105E Ch. A.1 - Prob. 106E Ch. A.1 - Prob. 107E Ch. A.1 - Prob. 108E Ch. A.1 - Prob. 109E Ch. A.1 - In Exercises 101-134, simplify each expression....Ch. A.1 - Prob. 111E Ch. A.1 - Prob. 112E Ch. A.1 - Prob. 113E Ch. A.1 - Prob. 114E Ch. A.1 - Prob. 115E Ch. A.1 - Prob. 116E Ch. A.1 - Prob. 117E Ch. A.1 - Prob. 118E Ch. A.1 - Prob. 119E Ch. A.1 - Prob. 120E Ch. A.1 - Prob. 121E Ch. A.1 - Prob. 122E Ch. A.1 - Prob. 123E Ch. A.1 - Prob. 124E Ch. A.1 - Prob. 125E Ch. A.1 - Prob. 126E Ch. A.1 - Prob. 127E Ch. A.1 - Prob. 128E Ch. A.1 - Prob. 129E Ch. A.1 - Prob. 130E Ch. A.1 - Prob. 131E Ch. A.1 - Prob. 132E Ch. A.1 - Prob. 133E Ch. A.1 - Prob. 134E Ch. A.1 - Prob. 135E Ch. A.1 - Prob. 136E Ch. A.1 - Prob. 137E Ch. A.1 - Prob. 138E Ch. A.1 - Prob. 139E Ch. A.1 - Prob. 140E Ch. A.1 - Prob. 141E Ch. A.1 - Prob. 142E

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To find the union and the intersection of the given intervals.

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