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[" 5.If "a,b,c,d" are in G.P.,then prove...

[" 5.If "a,b,c,d" are in G.P.,then prove that "(1)/(a^(3)+b^(3))],[(1)/(b^(3)+c^(3)),(1)/(c^(3)+d^(3))" are also in G.P."]

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