[" The equation of the tangent to the circle "x^(2)+y^(2)-4x=0" which is "],[" perpendicular to the normal drawn through the origin can be: "]

The equation of tangent to the circle x^2 + y^2 - 4x = 0 which is perpendicular to the normal drawn through the origin can be : (A) x=0 (B) x=4 (C) x+y=2 (D) none of these

The equation of tangent to the circle x^2 + y^2 - 4x = 0 which is perpendicular to the normal drawn through the origin can be : (A) x=0 (B) x=4 (C) x+y=2 (D) none of these

Find the equation of the tangent to the circle x^(2)+y^(2)=15 which is perpendicular to the line 4x-y+6=0

The equation of the tangent to the circle x^(2)+y^(2)+8x-4y-5=0 and perpendicular to 2x+3y+5=0 are

The pair of tangents from origin to the circle x^(2)+y^(2)+4x+2y+3=0 is

The pair of tangents from origin to the circle x^(2)+y^(2)+4x+2y+3=0 is

The pair of tangents from origin to the circle x^(2)+y^(2)+4x+2y+3=0 is

Equation of the diameter of the circle x^(2) +y^(2) - 2x + 4y = 0 which passes through the origin is