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Mathematics
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a. a { x ∈ Z + ∣ x ≤ 5 } \{x \in \mathbb{Z}^+ \mid x \le 5\} { x ∈ Z + ∣ x ≤ 5 } b { x ∈ N ∣ x < 5 } \{x \in \mathbb{N} \mid x < 5\} { x ∈ N ∣ x < 5 } c { x ∈ Z ∣ − 2 < x < 3 } \{x \in \mathbb{Z} \mid -2 < x < 3\} { x ∈ Z ∣ − 2 < x < 3 } d { x ∈ Z + ∣ 3 < x ≤ 7 } \{x \in \mathbb{Z}^+ \mid 3 < x \le 7\} { x ∈ Z + ∣ 3 < x ≤ 7 } e { x ∈ R ∣ x ≥ 3 } \{x \in \mathbb{R} \mid x \ge 3\} { x ∈ R ∣ x ≥ 3 } f { x ∈ R ∣ x < 6 } \{x \in \mathbb{R} \mid x < 6\} { x ∈ R ∣ x < 6 } g { x ∈ R ∣ 2 ≤ x < 6 } \{x \in \mathbb{R} \mid 2 \le x < 6\} { x ∈ R ∣ 2 ≤ x < 6 } h { x ∣ 3.6 ≤ x ≤ 10.2 } \{x \mid 3.6 \le x \le 10.2\} { x ∣ 3.6 ≤ x ≤ 10.2 } i { x ∣ x < 3 } ∪ { x ∣ x > 6 } \{x \mid x < 3\} \cup \{x \mid x > 6\} { x ∣ x < 3 } ∪ { x ∣ x > 6 } j { x ∣ x ≤ 2 } ∪ { x ∣ x > 4 } \{x \mid x \le 2\} \cup \{x \mid x > 4\} { x ∣ x ≤ 2 } ∪ { x ∣ x > 4 } k { x ∣ x < 3 } ∪ { x ∣ 7 < x < 12 } \{x \mid x < 3\} \cup \{x \mid 7 < x < 12\} { x ∣ x < 3 } ∪ { x ∣ 7 < x < 12 } l { x ∈ Z + ∣ x ≤ 6 } ∪ { x ∈ Z + ∣ 8 ≤ x ≤ 11 } \{x \in \mathbb{Z}^+ \mid x \le 6\} \cup \{x \in \mathbb{Z}^+ \mid 8 \le x \le 11\} { x ∈ Z + ∣ x ≤ 6 } ∪ { x ∈ Z + ∣ 8 ≤ x ≤ 11 } Browse the problem library