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Show that P(m,1)+P (n,1)=P(M+n,1)for all...

Show that `P(m,1)+P (n,1)=P(M+n,1)`for all positive integers m, n.

Text Solution

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`""^mP_1+""^(m+n)P_1 AA m,n in Z`
`:. L.H.S,=""^mP_1+""^nP_1=m+n=""^(m+n)P_1=R.H.S.`
`( :' ""^nP_1=n).`
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