If `4x-3y+7 = 0` is a tangent ot the circle
repesented by `x^(2) + y^(2) -6x + 4y - 12 = 0` ,
then find its point of contact.

If x=7 tonches the circle x^(2)+y^(2)-4 x-6 y-12=0 then the point of contact is

find the equation pf tangent to the circle x^(2)+y^(2)-6x+4y-3=0 from the point (4,7) also,find the point of contact

The straight line 3x-4y +7 = 0 is a tangent to the circle x^(2) + y^(2) + 4x + 2y + 4 = 0 at P, find the equation of its normal at the same point.

Show that the line x-y + 4 =0 is a tangents to the ellipse x^(2) + 3y^(2) =12 . Also find the coordinates of the points of contact.

Show that the tangent at (-1, 2) of the circle x^(2) + y^(2) - 4x -8y + 7 = 0 touches the circle x^(2) + y^(2) + 4x + 6y = 0 and also find its point of contact.

Show that the tangent at (-1, 2) of the circle x^(2) + y^(2) - 4x -8y + 7 = 0 touches the circle x^(2) + y^(2) + 4x + 6y = 0 and also find its point of contact.