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Mathematics 9 Online
OpenStudy (christos):

'Chose' Can someone tell me what does the 2 mean in the picture below ? https://www.dropbox.com/s/xpl9v4xwgmo1i80/Screenshot%202014-10-20%2015.19.31.jpg?dl=0 it is referred to as "Chose" 2.

ganeshie8 (ganeshie8):

\(\large \binom{N+1}{2}\) refers to choosing `2` objects from a set of `N+1` objects

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