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The tangents drawn from the origin x^(2)...

The tangents drawn from the origin `x^(2)+y^(2)-2rx-2hy+h^(2)=0` are per-pendicular if

A

h=r+1

B

h=-4

C

`r^2+h^2=1`

D

`r^2=h^2`

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The correct Answer is:
D
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DIPTI PUBLICATION ( AP EAMET)-CIRCLE-Exercise 1C(Pole, Polar)
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