[" The power of "(1,1)" with respect to the "],[" circle "x^(2)+y^(2)-4x+3y+k=0" is "],[3" then "k" is "]

If the power of (2,1) with respect to the circle 2x^(2)+2y^(2)-8x-6y+k=0 is positive if

The power of P(1,2) with respect to the circle x^(2)+y^(2)+4x+2y+3=0 is double the power of P with respect to x^(2)+y^(2)+2x+y+k=0 then k=

A: The polar of (2,3) with respect to the circle x^(2)+y^(2)-4x-6y+5=0" is "2x+3y=0 R: The polar of (x_(1),y_(1)) with respect to the circle S=0" is "S_(1)=0

If 2kx + 3y - 1 = 0 , 2x + y + 5 = 0 are conjugate lines with respect to the circle x^(2) +y^(2) - 2x - 4y - 4 = 0 , t hen k =

The tangent to the circle x^(2)+y^(2)-4x+2y+k=0 at (1,1) is x-2y+1=0 then k=

The tangent to the circle x^(2)+y^(2)-4x+2y+k=0 at (1,1) is x-2y+1=0 then k=