If a,b,c are in G.P. and x,y be the AM\'...

If `a,b,c are in G.P. and x,y be the AM\'s between a,b and b,c respectively then (A) ``1/a+1/b=(x+y)/6``(B) ax+cy=b` (C) `a/x+c/y=2` (D) `1/x+1/y=2/b`

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