The equation of incircle of the triangle formed by common tangents to the circles `x^(2)+y^(2)=4 and x^(2)+y^(2)-6x+8=0` is

The equation of an ex - circle of a triangle formed by the common tangents to the circle x^(2)+y^(2)=4 and x^(2)+y^(2)-6x+8=0 is

The equation of an ex - circle of a triangle formed by the common tangents to the circle x^(2)+y^(2)=4 and x^(2)+y^(2)-6x+8=0 is

Find the area of the triangle formed by the common tangents to the circles x^(2)+y^(2)+2x=0 and x^(2)+y^(2)-6x=0

The number of common tangents to the circles x^(2) + y^(2) = 4 and x^(2)+y^(2)-6x-8y=24 is

The number of common tangents to the circles x^(2) + y^(2) = 4 and x^(2)+y^(2)-6x-8y=24 is

The number of common tangents to the circles x^(2) + y^(2) = 4 and x^(2) +y^(2) - 6x - 8y -24 =0 is,

The number of common tangents to the circles x^2+y^2=4 and x^2+y^2-6x-8y-24=0 is

The point lying on common tangent to the circles x^(2)+y^(2)=4 and x^(2)+y^(2)+6x+8y-24=0 is