(a-b)x^2 +(b-c)x+(c-a)=0 has equal roots. prove that 2a=b+c.

1.	(a-b)x^2 +(b-c)x+(c-a)=0 has equal roots. prove that 2a=b+c.
Answer» Use the relation, Bsq. - 4ac=0

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