# Inclusion-Exclusion

• Apr 15th 2010, 01:15 PM
questionboy
Inclusion-Exclusion
A=10 and B=15

Find the maximum and minimum values AuB

Max=25, Min=15.

Am I correct?
• Apr 15th 2010, 01:53 PM
Plato
As written the question makes no sence.
Do you mean that \$\displaystyle A~\&~B\$ are sets?
And \$\displaystyle |A|=10~\&~|B|=15\$ that is the number of elements in the sets.
Are you asks to find \$\displaystyle \max\{|A\cup B|\}~\&~\min\{|A\cup B|\}\$?
• Apr 15th 2010, 02:05 PM
questionboy
Sorry! Plato. I don't know how to input the symbol.
You are correct I am looking for http://www.mathhelpforum.com/math-he...97e2f3c6-1.gif?
• Apr 15th 2010, 02:22 PM
Plato
Quote:

Originally Posted by questionboy
Sorry! Plato. I don't know how to input the symbol. You are correct.[/URL]?

\$\displaystyle \max\{|A\cup B|\}=25~\&~\min\{|A\cup B|\}=15\$.
Why not learn to post in symbols? You can use LaTeX tags.
[tex]\max\{|A\cup B|\}=25~\&~\min\{|A\cup B|\}=15[/tex]. gives \$\displaystyle \max\{|A\cup B|\}=25~\&~\min\{|A\cup B|\}=15\$.
• Apr 15th 2010, 02:44 PM
questionboy
Thank you very much! Plano. I will try to use symbol next time.