Page 52 - 091math-wb-w3-(sets)

WORKBOOK

nd
Example 7: Determine which of the following points is in 2 quadrant.

a. A(3, 4) b. B(-9, -2) c. C(7, 0) d. D(-3, 3) e. E(5, -1)

Cartesian product (Cross Product):

…………………………………………………………………………………………………………………………………………………

………………………………………………………………………………………………………………………………………………….

That is

AxB = { (x,y): xA and yB }

2
AxA = A = { (x,y) ∶ xA and yA }

Example 8: A = {p, c} and B = {3, 5, 7} are given.

I) Represent A x B and B x A
a) in listed form.
b) is A x B = B x A?
c) using a Venn Diagram.
d) using a graph.

52 091math-wb-w3-(sets)