Inclusion-Exclusion

**questionboy** · April 15th 2010, 01:15 PM

A=10 and B=15

Find the maximum and minimum values AuB

Max=25, Min=15.

Am I correct?

**Plato** · April 15th 2010, 01:53 PM

As written the question makes no sence.
Do you mean that $A~\&~B$ are sets?
And $|A|=10~\&~|B|=15$ that is the number of elements in the sets.
Are you asks to find $\max\{|A\cup B|\}~\&~\min\{|A\cup B|\}$ ?

**questionboy** · April 15th 2010, 02:05 PM

Sorry! Plato. I don't know how to input the symbol.
You are correct I am looking for

?

**Plato** · April 15th 2010, 02:22 PM

Originally Posted by questionboy

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

$\max\{|A\cup B|\}=25~\&~\min\{|A\cup B|\}=15$ .
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 $\max\{|A\cup B|\}=25~\&~\min\{|A\cup B|\}=15$ .

**questionboy** · April 15th 2010, 02:44 PM

Thank you very much! Plano. I will try to use symbol next time.

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