CircleMedium
Question
The locus of the foot of the perpendicular from the centre of the hyperbola xy = c2 on a variable tangent is :
Options
A.(x2 - y2)2 = 4c2 xy
B.(x2 + y2)2 = 2c2xy
C.(x2 - y2) = 4c2xy
D.(x2 + y2)2 = 4c2 xy
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