Mathematics for IGCSE & O level - Sets (Section 3 - No. 29)
Which of the following would represent the shaded area if the shaded area in the Venn diagram includes everything in set P but exclude everything in set Q?
P ∪ Q
P ∩ Q
P \ Q
Q \ P
Giải thích
P \ Q is the set-theoretic difference representing all elements in P that are not in Q.