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If both the roots of the quadratic equation x^2 - 2kx + k^2 + k - 5 = 0 are less than 5, then k lies in the interval

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If both the roots of the quadratic equation x2 - 2kx + k2 + k - 5 = 0 are less than 5, then k lies in the interval

(a) [4, 5] 

(b) (-∞, 4) 

(c) (6, ∞) 

(d) (5, 6]

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Correct option (b) (-∞, 4)

Explanation:

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