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## catgirl17 Group Title find the number of combinations 7C6 2 years ago 2 years ago

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1. KingGeorge Group Title

$7C6={7! \over 6!(7-6)!}={7 \over 1!}=7$

2. catgirl17 Group Title

$_{7} C _{6}$

3. KingGeorge Group Title

Notice that the $$7!$$ and $$6!$$ cancel for the most part since $$7!=7\cdot6!$$