Page 19 - ADVANCED MATH F.5

Form Five Form Five

4. Engage different hands on activities that will enable students
to explore real life problems through Examples 1.33 to 1.38 in
the student’s Book.
5. For further discussions instruct students to attempt Exercise
FOR ONLINE READING ONLY
1.7 in the Student’s Book. Advise students to submit their
work, check the correctness of their answers, and provide
constructive feedback.

Answers to Exercise 1.7
1. (a) ( nA ∩ B ) 3= (c) ( nA ∪ B ) 5=

(b) ( nA B∆ ) = 2 (d) ( nA B− ) 1=

2. (a) ( nA ∩ B ) = 4 (c) ( n A ∪ B ) 10=
(b) ( nA B∆ ) 6= (d) ( nA B− ) = 4

3. (a) ( nA ∩ B ) 0= (c) ( nA ∪ B ) 3=
(b) ( nA B∆ ) 3= (d) ( nA B− ) 1=

4. (a) ( nA ∩ B ) 1= (c) ( nA ∪ B ) 3=
(b) ( nA B∆ ) = 2 (d) ( nA B− ) 0=

5. (a) ( nA ∩ B ) 1= (c) ( nA ∪ B ) = 2

(b) ( nA B∆ ) 1= (d) n(A B) 1− =
6. ( nA ∩ B ) = ′ 7 7. (a) n(A) =150 (b) n(B) = 100

8. Who had three diseases = 20 patient

9. (a) 2 (b) 119 (c) 126 (d) 129

Answers to Revision Exercise 1

}
B C=
1. (a) A∪∪ {0,2,4,6,8,12,16,18 (b) A∩∩ { } 0
B C=

B
B
(c) (i) ( nA ∪∪ C ) 8= (ii) ( nA ∩∩ C ) 1=
13
Mathematics for Advanced Secondary Schools

30/06/2024 18:01:46
ADVANCED MATH F.5 TG CHAPTERS.indd 13 30/06/2024 18:01:46
ADVANCED MATH F.5 TG CHAPTERS.indd 13