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If a,b,c are in G.P.L, then the equation...

If a,b,c are in G.P.L, then the equations `ax^(2) + 2bx + c = 0 0` and `dx^(2) + 2ex+ f = 0 ` have a common root if `( d)/( a) , ( e )/( b ) , ( f )/( c ) ` are in `:`

A

A.P

B

G.P

C

H.P

D

none of these

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The correct Answer is:
A
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