Module 5 Sets
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Module 5 Sets

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Module 5 Sets Module 5 Sets Document Transcript

  • PPR Maths nbk MODUL 5 SKIM TUISYEN FELDA (STF) MATEMATIK SPM “ENRICHMENT” TOPIC : SETS MASA : 1 JAM 1. The Venn diagram in the answer space shows the universal set ξ, sets P, Q and R. The universal set ξ = P ∪ Q ∪ R. On the diagram in the answer space, shade the region for (a) P ∩ Q, (b) P ∩ ( Q ∪ R )’. [3 marks] Answer: (a) ξ P Q R (b) ξ P Q R
  • PPR Maths nbk 2. The Venn diagram in the answer space shows sets J ,K and L. In the answer space, shade (a) J ∩ L’ (b) (K ∪ L)∩ J’ [3 marks] Answer: (a) J L (b) J K L
  • PPR Maths nbk 3 The Venn diagram in the answer space shows set P, set Q and set R with the universal set ξ = P ∪ Q ∪ R. On the diagram in the answer space, shade (a) P∪Q ∩R (b) P ∩ ( Q ∪ R) ′ [3 marks] Answer: (a) Q P R (b) R P Q
  • PPR Maths nbk 4. Diagram 4 shows an incomplete Venn diagram that represents the number of students from a class of 30, according to the subjects they have studied. Each student studied at least one of the three subjects Physics, Chemistry and Biology. Given the universal set, ξ = P ∪ C ∪ B, P = {students who studied Physics} C = {students who studied Chemistry} B = {students who studied Biology} C P 6 5 2 1 B DIAGRAM 4 20 students studied Chemistry and 12 students studied Biology. Based on this information, find (a) the number of students who studied Chemistry and Biology but not Physics. (b) the number of students who studied Biology only. (c) the number of students who studied Physics. [4 marks] Answer: (a) (b) (c)
  • PPR Maths nbk 5. (a) Given that ξ = { x: x is an integer and 7 ≤ x ≤ 15}, A = { x: x is a multiple of 3 }, B = {x : x is an odd number} and C = { x: 10 ≤ x ≤ 13 }. (a). List the elements of the set C ′ . (b). Find n(A ∪B). [3 marks] 6. Given that n(ξ) = 50. G and H are two sets for which n( G ∩ H) = 6, n(G) = 18 and n(H) = 14. (a). Draw a Venn diagram to represent the relationship between sets G and H and write the number of elements in each region. (b). Find n(G ∪ H)′. [3 marks] Answer: (a) (b)
  • PPR Maths nbk 7. If ξ = {x : 1 ≤ x ≤ 10 , x is an integer} E = {x : x is a multiple of 4} F = {x : x is a factor of 20} (a) List all the elements in set E, (b) Find n( E ∪ F ) . [3 marks] 8. The Venn diagram in the answer space shows set P, set Q dan set R. On the diagram, shade (a) P ∩ Q’ (b) R ∩ (P’ ∪ Q) [ 3 marks ] Answer : (a) ξ P R Q (b) ξ P R Q
  • PPR Maths nbk MODULE 5 – ANSWERS TOPIC: SETS 1 (a) ξ 1 PQ R (b) ξ P Q R 2 2 (a) J ∩ L′ 1 J K (b) (K ∪ L ) ∩ J ′ 2 J K 3 L 3 Q (a) 1 P R (b) P R 2 3 Q
  • PPR Maths nbk 4 (a) 5 1 (b) 30 –(5 + 6 + 2 + 1 ) 1 16 1 (c) 9 1 4 5 (a) {10,11,12,13 } 1 (b) A = {9,12,15 } B = {7,9,11,13,15} A ∪ B = {7,9,11,12,13,15} 1 1 3 N(AUB)=6 6 (a) ξ 2 G H 24 12 6 8 (b) 24 1 3 7 (a) {4 , 8} 1 Note: Accept without bracket. (b) 6 2 3
  • PPR Maths nbk 8 ξ 1 P R 2 Q 3 P R Q