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Black Book Advanced Problems in MathematicsMathematicsFunctions

Let A = x | x^2 - 4x + 3 < 0, x R B = x | 2^ 1-x + p 0; x^2 - 2(p+7)x + 5 0 If A B , then the range of real number p [a, b] where a, b are integers. Find the value of (b - a) .

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3

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