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The tangent to the hyperbola xy=c^2 at t...

The tangent to the hyperbola `xy=c^2` at the point P intersects the x-axis at T and 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 PN'T' are `Delta` and `Delta'` respectively, then `1/Delta+1/(Delta)'` is

A

(a)equal to 1

B

(b)depends on t

C

(c)depends on c

D

(d)equal to 2

Text Solution

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The correct Answer is:
C
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