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Generally Speaking => Power On => Topic started by: Hi on October 18, 2007, 09:15:53 PM

Title: \PRECALCULUS: FACTORIALS II
Post by: Hi on October 18, 2007, 09:15:53 PM
guys how do i simplify (2n+1)!/2n!
i'm sure the answer is 2n+1, but just making sure
Title: Re: \PRECALCULUS: FACTORIALS II
Post by: Termanian_Knight on October 18, 2007, 09:25:54 PM
Yup, it is.

If you want an explanation...

1x2x3x...x(2n-1)x(2n)x(2n+1)
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1x2x3x...x(2n-1)x(2n)

Equals 2n+1. I haven't touched factorials in a while, though.
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