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catgirl17

  • 3 years ago

find the number of combinations 7C6

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  1. KingGeorge
    • 3 years ago
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    \[7C6={7! \over 6!(7-6)!}={7 \over 1!}=7\]

  2. catgirl17
    • 3 years ago
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    \[_{7} C _{6}\]

  3. KingGeorge
    • 3 years ago
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    Notice that the \(7!\) and \(6!\) cancel for the most part since \(7!=7\cdot6!\)

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