If the length of the tangent from `(5,4)` to
the circle `x^(2) + y^(2) + 2ky = 0` is 1 the n find k.

If the length of the tangent from (5,4) to the circle x^(2) + y^(2) + 2ky = 0 is 1 then find k.

If the length of the tangent from (2,5) to the circle x^(2) + y^(2) - 5x +4y + k = 0 is sqrt(37) then find k.

If the length of the tangent from (2,5) to the circle x^(2) + y^(2) - 5x +4y + k = 0 is sqrt(37) then find k.

The length of the tangent from (1,1) to the circle 2x^(2)+2y^(2)+5x+3y+1=0 is

The length of the tangent from (1,1) to the circle 2x^(2)+2y^(2)+5x+3y+1=0 is