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The equation of tangents drawn from the ...

The equation of tangents drawn from the origin to the circle `x^(2)+y^(2) -2r x -2hy +h^(2) =0` are

A

`x=0`

B

`y=0`

C

`(h^(2)-r^(2))x -2rhy =0`

D

`(h^(2)-r^(2)) x + 2rhy=0`

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The correct Answer is:
A
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