## CLEP Guides

American Government Biology College Mathematics General CLEP General Tips Human Growth And Development Humanities Introductory Psychology Principles Of Marketing Sociology US History 1 US History 2# Answers For Set Problems

## What Are Sets?

__
A={Even Whole Numbers Between 1 and 11} __

*A={2,4,6,8,10}*

__Is 6 ∈ A?__

*
Yes 6 ∈ A as 6 is an even whole number between 1 and 11.
*

__Is 8 ∉ A?__

*
No, 8 ∉ A is a wrong statement. This is because 8 is an even whole number between 1 and 11. So 8 ∈ A.
*

## Union and Intersections

A={2,5,6,8,10,23,67,88,101,134}

B={1,6,7,10,34,67,76,96,101,155}

__Write the set for A Union B.__

*
A ∪ B = {1,2,5,6,7,8,10,23,34,67,76,88,96,101,134,155}
*

__Write the set for A Intersect B.__

*
A ∩ B = {6,10,67,101}*

## Venn Diagrams

__A intersect B__

__B intersect (A union C)__

## Cartesian Product

Which of the following pairs is NOT an element in D x E ?

1. (6,13) 2. (9,7) 3. (10,15) 4. (1,22)

__Answer: Number 3. (10,15) __