The equation of the tangents to the circ...

The equation of the tangents to the circle `x^2+y^2-20x+12y+11=0` having slope -2 are

A

`y=-2x+11` and `y=-2x+39`

B

`y=-2x-15` and `y=-2x+39`

C

`y=-2x-11` and `y=-2x+35`

D

`y=-2x-11` and `y=-2x+39`

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