Let OX and OY be two fixed lines inclined at a constant angle α. A variable line cuts OX…
Mathematics · JEE Advanced · NTA Exams — Co-ordinate Geometry
Let OX and OY be two fixed lines inclined at a constant angle α. A variable line cuts OX at P and OY at Q. From P and Q perpendiculars PM and QN are drawn to OY and OX respectively.
If PQ passes through a fixed point (h, k) then MN passes through a fixed point- (k cos α, h sin α)
- (k cos α, h cos α)
- (k sin α, h cos α)
- None of these.
Answer
(B) (k cos α , h cos α )
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