The diagonals of a parallelogram PQRS are along the lines x+3y=4 and 6x-2y=7. Then PQRS must be a

JEE Advanced Mathematics question

The diagonals of a parallelogram PQRS are along the lines and . Then PQRS must be a

Answer: (D)

Slopes of the diagonals: and ; product , so the diagonals are perpendicular. A parallelogram with

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Question ID VK-108779