Problems
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Find the union and intersection of $A=\{-10,0,-101,3,5,19\}$ and $B=\{-101,2,7,5,10,100\}$.
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What is the union of the citizens of England, Scotland, Wales and Northern Ireland?
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Find the union and the intersection of the sets $A=\{0,2,4,6,8,\cdots\}$ and $B=\{1,3,5,7,9,\cdots\}$.
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Find the union and intersection of $A=\{1,2,3,4,5\}$ and $B=\{2,7,5,10,100\}$.
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Find the union and intersection of the following two sets: $H=\{dog,cat,hamster,goldfish\}$ and $F=\{cow,sheep,dog,horse,cat,chicken\}$.
