Page 28 - ADVANCED MATH F.5

Form Five Form Five

12. (a) Swimming in the pool is dangerous.
(b) Few people have not been drawn in the swimming pool if and
only if Swimming in the pool is not dangerous.

(c) If swimming in the pool is dangerous, then few people have
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been drawn in the Swimming pool.

13. (a) p q pq∧  ( pq∧ ) ( pq∧ )∧ ( pq∧  )

T T T F F
T F F T F
F T F T F
F F F T F

(b) p q q → p p → (q → ) p ↔ (p → ) q
q
T T T T T
T F T F F
F T F T F
F F T T T

(c) p q r pq∨ (pq∨ ) r∧

T T T T T
T T F T F
T F T T T
T F F T F
F T T T T
F T F T F
F F T F F
F F F F F

22
Mathematics for Advanced Secondary Schools

30/06/2024 18:01:48
ADVANCED MATH F.5 TG CHAPTERS.indd 22
ADVANCED MATH F.5 TG CHAPTERS.indd 22 30/06/2024 18:01:48