Problem

Problem

Determine whether each statement is true or false: a. −7∈Z+-7 \in \mathbb{Z}^+ b. 23∉Z\frac{2}{3} \notin \mathbb{Z} c. −4∈Z-\sqrt{4} \in \mathbb{Z} d. 3∈Q\sqrt{3} \in \mathbb{Q} e. 79∈Q\frac{7}{9} \in \mathbb{Q} f. 0.201∈Z0.201 \in \mathbb{Z} g. 70.31∈Q\frac{7}{0.31} \in \mathbb{Q} h. ∣−1∣∈R\sqrt{|-1|} \in \mathbb{R}

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