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[" The roots of the equation "a(x-b)(x-c...

[" The roots of the equation "a(x-b)(x-c)+b(x-c)(x-a)+c(x-a)(x-b)=0],[(a,b,c" are distinct and real ")" are always : "],[[" (A) Positive "," (B) Negative "],[" (C) Real "," (D) Unreal "]]

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