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Question

A line drawn through the point P (-1, 2) meets the hyperbola xy=c2 at the points A and B (points A and B lie on same side of P) . Q is a point on AB such that PA, PQ and PB are in H.P then locus of Q is


A
x2y=2c2
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B
2xy=2c2
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C
2x+y+2c2=0
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D
x+2y+2c2
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Solution

The correct option is B 2xy=2c2
Locus of Q is S1=0
2xy=2c2

Mathematics

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