KEAM 2013 Math Paper

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Question : 12 of 120

Marks: +1, -0

The quadratic equation

(x−a)(x−b)+(x−b)(x−c)+(x−c)(x−a)=0

has equal roots if

a≠b,b=c
a=b,b≠c
a≠b,b≠c
a=b=c
a+b+c=0

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