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If a, b, c are in GP and the equations ax^2 + 2bx + c = 0 and dx^2 + 2ex + f = 0 have a common root,thend/a ,e/b ,f/care in

kehav , 6 Years ago
Grade 11
anser 1 Answers
Deepak Kumar Shringi

Last Activity: 6 Years ago

If the equationsax^2+2bx+c=0and dx^2+2ex+f=0have one and only one root common
then(ae-bd)(bf-ec)=(cd-af)2use this and also replace b2=ac

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