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Hello, i'm a teacher for this question and our question says that expressing sets in set builder notations.
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Express each set using set builder notation, then if the set is finite, give its cardinality.
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Otherwise, indicate that the set is finite.
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So option a is given as minus 2, minus 1, 012.
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So for the a, we need to write the set minus 2, minus 1, then after 0, 1 and 2.
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0, 1 and then 2.
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So i will be writing this set as that x where x is defined as an integer and x is between minus 2 to 2.
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All right.
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So this is a finite set and its cardinality.
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Cardinality is number of elements in this set that can be written as cardinality or cardinal number can be written as 5 here...