The locus of the point of intersection of the tangents at the extermities of a chord of the circle `x^2+y^2=b^2` which touches the circle `x^2+y^2-2by=0` passes through the point

The locus of the point of intersection of the tangents at the extremities of a chord of the circle x^(2)+y^(2)=r^(2) which touches the circle x^(2)+y^(2)+2rx=0 is

The locus of the point of intersection of the tangents at the extremities of a chord of the circle x^(2)+y^(2)=r^(2) which touches the circle x^(2)+y^(2)+2rx=0 is

Locus of the point of intersection of tangents at the extremeties of a chord of a circle x^(2)+y^(2)=a^(2) which touch the circle x^(2)+y^(2)-2ax=0 is

The locus of points of intersection of the tangents to x^(2)+y^(2)=a^(2) at the extremeties of a chord of circle x^(2)+y^(2)=a^(2) which touches the circle x^(2)+y^(2)-2ax=0 is/are :

The locus of points of intersection of the tangents to x^(2)+y^(2)=a^(2) at the extremeties of a chord of circle x^(2)+y^(2)=a^(2) which touches the circle x^(2)+y^(2)-2ax=0 is/are :

The locus of the point of intersection of the two tangents drawn to the circle x^2 + y^2=a^2 which include are angle alpha is

The locus of the point of intersection of the two tangents drawn to the circle x^(2)+y^(2)=a^(2) which include are angle alpha is

Obtain the locus of the point of intersection of the tangent to the circle x^2 + y^2 = a^2 which include an angle alpha .

The locus of the point of intersection of the perpendicular tangents to the circle x^(2)+y^(2)=a^(2), x^(2)+y^(2)=b" is "