guys how do i simplify (2n+1)!/2n!
i'm sure the answer is 2n+1, but just making sure
Yup, it is.
If you want an explanation...
1x2x3x...x(2n-1)x(2n)x(2n+1)
--------------------------------------
1x2x3x...x(2n-1)x(2n)
Equals 2n+1. I haven't touched factorials in a while, though.