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Texas Instruments TI-34 MultiView? Scientific ... - Radio Shack

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Combination (nCr)<br />

You have space for 2 books on your<br />

bookshelf. You have 4 books to put on<br />

the shelf. Use this formula to find how<br />

many ways you could place the 4<br />

books in the 2 spaces.<br />

H<br />

4 C 2<br />

A B C D<br />

AB and BA<br />

count as only 1<br />

combination<br />

Press<br />

4 H $<br />

AB AC AD<br />

BA BC BD<br />

CA CB CD<br />

DA DB DC<br />

Display<br />

< 2 <<br />

There are 6 unique combinations of 2<br />

books chosen from 4 different books.<br />

112 <strong>TI</strong>-<strong>34</strong> <strong>MultiView</strong>: A Guide For Teachers © 2007 TEXAS INSTRUMENTS INCORPORATED

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