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The feet of the normals to (x^(2))/(a^(2...

The feet of the normals to `(x^(2))/(a^(2)) -(y^(2))/(b^(2)) =1` from (h,k) lie on

A

`a^(2)y(x-h) + b^(2)x(y-k) = 0`

B

`b^(2)x(x-h) + a^(2)y(y-k) =0`

C

`(a^(2) + b^(2)) xy -a^(2)hy -b^(2)xk = 0`

D

None of these

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The correct Answer is:
A, C
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AAKASH INSTITUTE-CONIC SECTIONS-SECTION-C
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  15. If one of varying central conic (hyperbola) is fixed in magnitude and ...

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  16. For the equation of rectangular hyperbola xy = 18

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  19. If the tangent at the point (asec alpha, b tanalpha ) to the hyberbola...

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