. The tangent to the hyperbola xy = c^2 at the point P intersects
The tangent to the hyperbola xy = c2 at the point P intersects the x-axis at T and the y-axis at T'. The normal to the hyperbola at P intersects the x-axis at N and the y-axis at N' The areas of the triangles PNT and PS'T' are Δ and Δ' respectively, then 1/Δ + 1/Δ' is
(A): equal to 1
(B): depends on t
(C): depends on c
(D): equal to 2
Best Answer
Correct Answer is:
(C): depends on c
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