[问答题]
Consider the followingyhxz1:.4;y b1axwc -/ cpv)ddr 0l edc Venn up -y.;qdaybhld +q m y;5h o**5npen6diagrams.
1. Write down an expression, in set notation, for the shaded region represented by
(1) Diagram 1;
(2) Diagram 2;
(3) Diagram 3.
2. Shade on the Venn diagrams the regions represented by the sets
(1) $A^{\prime} \cup B$ ;
