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The locus of the point from which the le...

The locus of the point from which the length of the tangent to the circle `x^2 + y^2 - 2x - 4y+4=0` is 3 units is

A

1

B

2

C

3

D

4

Text Solution

Verified by Experts

The correct Answer is:
C
The length of the tangen drawn to the circle `x^(2)+y^(2)-2x+4y-11=0` from the point (1,3)
`=sqrt(1^(2)+3^(2)-2.1+12-11)`
`=sqrt(22-13)=3`
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