Let and be the roots of equation px^2 + qx + r = 0, p 0. If p, q, r are in A.P. and 1 + 1 = 4, then the value of | - | is

JEE Main 2014 Mathematics question

Let and be the roots of equation , . If p, q, r are in A.P. and , then the value of is

Answer: (A)

. A.P.: $2q = p + r ⇒ -8r = p +

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Question ID VK-008701