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Thetangents drawn from the origin to the circle x2+y2-2kx-2ry+r2=0 are perpendicular if: a.k=r b.k=-r c.k2=r2 d.k2+r2=1

Thetangents drawn from the origin to the circle x2+y2-2kx-2ry+r2=0 are perpendicular if:


a.k=r


b.k=-r


c.k2=r2


d.k2+r2=1

Grade:12

1 Answers

jitender lakhanpal
62 Points
10 years ago

Dear,

 please find the attachment below

 

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