1.

Show that P(n,n)=P(n,n-1)"For all positive integers."

Answer»

SOLUTION :L.H.S.`=""^nP_n=(N!)/((n-n)!)=(n!)/(01)=(n!)/1=n!`
`R.H.S.=""^nP_(n-1)=(n!)/((n-n+1)!) =(n!)/(1!)`
`:.L.H.S.=R.H.S.`


Discussion

No Comment Found

Related InterviewSolutions