IIT JEE 2007 Practice : MATHEMATICS - Multiple Choice

Each question below has only one correct answer.
In the IIT-JEE, you will be awarded 3 marks for each correct answer and −1 for each incorrect answer.
You will be awarded 0 marks for not attempting a question.

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Multiple choice

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Let a, b, c be the sides of a scalene triangle and λ ∈ R. If the roots of the equation   x 2 + (a + b + c) x + λ(ab + bc + ca) = 0 are equal, then   λ > 4/3   λ = 1   λ ∈ (1, 4/3)   λ < 1   Hint Half-n-half Clue

 

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