Determine whether each statement is true or false:

MATHEMATICS · Multi-part · CBSE · Mathematics · Number Systems · Number Systems

Problem

Determine whether each statement is true or false: (1)

-7\in\mathbb{Z}^+

(2)

\frac23\notin\mathbb{Z}

(3)

-\sqrt4\in\mathbb{Z}

(4)

\sqrt3\in\mathbb{Q}

(5)

\frac79\in\mathbb{Q}

(6)

0.201\in\mathbb{Z}

(7)

\frac{7}{0.31}\in\mathbb{Q}

(8)

\sqrt{|-1|}\in\mathbb{R}