Question

give the correct answer of set ​

Answer 1

Answer:

73.(b)

74.(c)

Step-by-step explanation:

73. if N is the set of natural numbers, the square of a number should not be greater than or equal to 9.

${1}^{2} = 1 (accepts \: the \: condition).\\ \\ {2}^{2} = 4 ( accepts \: the \: condition)\\ \\ {3}^{2} = 9(does \: not \: accepts \: the \: condition).$

74. A = {5,6,7} where (-5) is not present. so (-5) doesn't belong to A.