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remnant

  • 3 years ago

Please help with the following factorial example:

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  1. remnant
    • 3 years ago
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  2. remnant
    • 3 years ago
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    how do i get from the middle term to the last term....not seeing what happened

  3. imron07
    • 3 years ago
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    Okay i'll just give the answer:\[\frac{(2n+2)!n!}{2n!(n+1)!}=\frac{(2n+2)(2n+1)!n!}{2n!(n+1)n!}=\frac{(2n+2)(2n+1)(2n)!n!}{2n!(n+1)n!}\]

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