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If a,b,c are the sides of a triangle ABC such that x^2 - 2(a + b + c)x + 3λ(ab + bc + ca) = 0 has real roots,

+3 votes

asked Mar 13, 2019 in JEE by kratos

If a,b,c are the sides of a triangle ABC such that x2 - 2(a + b + c)x + 3λ(ab + bc + ca) = 0 has real roots,

theory of equations
class-12
jee
jee mains

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1 Answer

+1 vote

answered Dec 1, 2020 by kratos

Best answer

The correct option is (a) λ < 4/3

Explanation:

Since, roots are real, therefore D ≥ 0

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