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Two fair dice are thrown together, numbers appeared on dice are α, β respectively. The probability that x2 + αx + β > 0, ∀ x ∈ R is

(1) 15/36

(2) 17/36

(3) 18/36

(4) 19/36

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Best answer

Correct option is (2) 17/36

Total number of out comes = 36

Now for favourable number of out comes

 

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