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If 3 x+y=0 is a tangtnt to the circle w...

If `3 x+y=0` is a tangtnt to the circle which has its centre at the point `(2,-1),` then the equation of the other tangtnt to the circle from the origin is

A

`x+3 y=0`

B

`3 x-y=0`

C

`x-3 y=0`

D

`x+2 y=0`

Text Solution

Verified by Experts

The correct Answer is:
C
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