The product of perpendiculars drawn from the point (1,2) to the pair of lines x^2+4xy+y^2=0 is

JEE Advanced Mathematics question

The product of perpendiculars drawn from the point to the pair of lines is

Answer: (D)

For the product of the perpendiculars from is .

*Derivation:* if the lines are , the product is . The numerator is

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Question ID VK-108867