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Prove that the straight lines joining the origin to the point of intersection of the straight line `h x+k y=2h k` and the curve `(x-k)^2+(y-h)^2=c^2` are perpendicular to each other if `h^2+k^2=c^2dot`

A

0

B

a

C

`a^(2)`

D

`-1`

Text Solution

Verified by Experts

The correct Answer is:
C
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