Page 222 - Mathematics_Form_Two

Chapter name

8. (a) A ∪ B Revision exercise 7

1. (a) False (c) True
(b) False (d) True

2. Statements (a) and (c) represent set
FOR ONLINE READING ONLY
A.
A ∩
B
(b)
Mathematics for Secondary Schools 4. A={1, 2, 3, 4, 5, 6, 7}
3. The set of the squares of the first five
natural numbers.

5. R and S are empty sets

6. A and B are equivalent sets and C

B'
(c) A ∪
and D are equal sets
7. A and D are infinite and B, C and E
are finite
8. a ∈ A, b A∈

9. 128
9. 0

10. A ⊆ B. 10. , 2, 4, 6, 2,4,{ }{ }{ } {∅ } 2,{ 6 , }{4, 6} {, 2,4, } 6
11. (a) A ⊂ B (b) D ⊂ C
11. (a) 10 (b) B ⊆
A.
12. (d)
12. A and B are disjoint sets
}
13. (a) A ∪ B = {a, b, c, d
13. 20
(b) A ∩ B = { }
14. 30
14. (a) A ∪ B {= 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 }
15. 7
(b) A ∩ B {= 2, 3, 5, } 7
16. (a) 2 (b) 22
15. A {1 }, 4=
17. 14
16. (a) A′ B′∩ = {}
18. 65 people
(b) A ∪ (B∩ A ){a, b,= } c
19. 32 women
′
17. (a) A ∪ B
20. 15 households
21. 52 men
22. (a) 61% (b) 3%

23. 15 students.

216
Student's Book Form Two

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MATHEMATIC F2 v5.indd 216 11/10/2024 20:15:08
MATHEMATIC F2 v5.indd 216