Sets, Long Questions (Question 3 & 4)


Question 3:
(a) The Venn diagrams in the answer space shows sets P and Q such that the
  universal set, ξ = P υ Q.
  Shade the set PQ.
(b) The Venn diagrams in the answer space shows sets X and Y and Z, such that
  the universal set, ξ = X υ Y υ Z.
  Shade the set (υ Z) ∩ Y.

Solution:

(a)

PQ means the intersection of the region P and the region Q.

(b)


• (X υ Z) means the union of the region X and the region Z.
• The region then intersects with region Y to give the result (X υ Z) ∩ Y.



Question 4:
The Venn diagrams in the answer space shows sets P, Q and R such that the universal set, ξ = P υ Q υ R
On the diagrams in the answer space, shade
(a) PR’,
(b) P’υ (QR).

Solution:
(a)
P ∩ R
(b)
P’υ (Q ∩ R)

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