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Location of Roots

The set of va...

Question

The set of values of a for which the inequality $x^{2} + a x + a^{2} + 6 a < 0$ is satisfied for all values of x lies in the interval:

(1 , 2 )

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[1 , 3 ]

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[-7 , 4]

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None of these

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Solution

The correct option is B (1 , 2 )
The set of values $= (1, 2)$
Option $(A)$ is correct answer.

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