If Pth,Qth,Rth,Sth terms of an A.P are in G.P show that (p-q),(q-r),(r-s)are also in G.P

If Pth,Qth,Rth,Sth terms of an A.P are in G.P show that (p-q),(q-r),(r

1.	If Pth,Qth,Rth,Sth terms of an A.P are in G.P show that (p-q),(q-r),(r-s)are also in G.P
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