Mathematics

Problem

Determine whether

A \subseteq B

: a.

A = \{2, 4, 6, 8\}

and

B = \{x \in \mathbb{Z} \mid 0 < x < 10\}

A = \emptyset

and

B = \{x \mid 2 < x < 3\}

A = \{x \in \mathbb{Q} \mid 2 < x \le 4\}

and

B = \{x \in \mathbb{R} \mid 0 \le x < 4\}

A = \{x \mid x < 3\}

and

B = \{x \mid x \le 4\}