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Let's review...
How many ways can you arrange the
letters in this word?
It's just like books --
6
letters...
But, what if some letters are
repeated?
What about this word?
The problem is that these letters
are the same. So, we can't tell the difference between these
two arrangements:
 |
and |
 |
which
O
is which O?
The answer is that
it doesn't matter!
So, when we figure
this guy out, we have to divide out that double
"O"
problem.
Check it out:
To arrange 6
letters is
6!
To arrange the two
O's
would be 2!
So, the number of
ways to arrange the letters in
is
Continued on the
next
page
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