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JEE Advanced Mathematics question

MathematicsQuadratic Equations and InequalitiesJEE Advanced

If and are distinct real numbers such that

+ + - 2(ab + bc + cd)p + + + 0

then are in

Answer: (B)

Solution

Regroup the left side as a sum of squares:

- 2abp + + - 2bcp + + - 2cdp + = (ap - + (bp - + (cp - 0.

A sum of r

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Question ID VK-107776