**Question 1**:

The
Venn diagrams in the answer space shows sets

*X*,*Y*and*Z*such that the universal set, $\xi =X\cup Y\cup Z$
On
the diagrams in the answer space, shade

*Solution:***(a)**

*•*means the intersection of the region outside

**X’ ∩ Y***X*with the region

*Y.*

**(b)**

*X*υ

*Y’*) first.

• (

*X*υ

*Y’*) means the union of the region

*X*and the region outside

*Y*.

• The region then intersects with region

*Z*to give the result of

**(**.

*X*υ*Y’*) ∩*Z***Question 2**:

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)**

*Q*∩

*R*,

**(b)**(

*P’*∩

*R*) υ

*Q*.

*Solution:***(a)**

•

**means the intersection of the region**

*Q*∩*R**Q*and the region

*R*.

**(b)**

• Find the region of (

*P’*∩

*R*) first.

• (

*P’*∩

*R*) means the region that is outside

*P*and is inside

*R*.

• The union of this region with region

*Q*give the result of

**(**.

*P’*∩*R*) υ*Q*