Determine the cardinality of each of the sets given below. Express each answer as a natural number in simplest form. {x ≤ Z | x² = 9} { x = Z | x² = 2} {x €Z | 3 < x < 6} { x = Z | x² = 0} {x € Z | 3 ≤ x ≤ 6} A

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