Addition of positive like terms

Addition of negative like terms

In a geometric progression consisting of positive terms,each term equals the sum of the next terms.Then find the common ratio.

in a geometric progression consisting of positive terms,each term equals the sum of the next two terms.Then the common ratio of this progression equals-

Addition of non-metals like B and C to the interstitial sites of a transition metal results the metal

Sum or difference of two like terms is ________ .

In a G.P.of positive terms if any terms is equal to the sum of next tow terms,find the common ratio of the G.P.