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