If pairs of straight lines, x 2 – 2pxy – y 2 = 0 and x 2 – 2q xy – y 2 = 0 be such that…
Mathematics · JEE Advanced · NTA Exams — Co-ordinate Geometry
If pairs of straight lines, x2 – 2pxy – y2 = 0 and
x2 – 2q xy – y2 = 0 be such that each pair bisects the angles between the other pair then :
x2 – 2q xy – y2 = 0 be such that each pair bisects the angles between the other pair then :
- pq = – 1/2
- pq = – 2
- pq = – 1
- p/q = – 1
Answer
(C) pq = – 1
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