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1. Union and intersection of intervals and are sets of real numbers defined as follows. Charles Garrett - 04/08/2017 4:04:54 PM EDT Developmental Math / 1174 MAT104 Spring 2017 – BENJELLOUN - MAT104546VA016-1174-001 (BENJELLOUN) Write and using interval notation. If the set is empty , write . The set is the interval . It is graphed below. The set is the interval . It is graphed below. The set is the union of the sets. It consists of all numbers that are in or (or both). The graph of can be found by merging the graphs of and . So, we get that . The set is the intersection of the sets. It consists of only those numbers that are in both

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