1.

""^(2n)P_(n) is equal to

Answer»

`(N+1)!(""^(2N)C_(n))`
`n!xx(""^(2n)C_(n))`
`n!xx(""^(2n+1)C_(n))`
`n!xx(""^(2n+1)C_(n+1))`

ANSWER :B


Discussion

No Comment Found

Related InterviewSolutions