" 1.Find the point of contact of the tangent "4x-3y+7=0" to the circle "x^(2)+y^(2)-6x+4y-12=0

Find the point of contact of the tangent x+y-7=0 to the circle x^2+y^2-4x-6y+11=0

Length of tangent from (8,6) to the circle x^(2)+y^(2)-3x-4y+2=0

Find the centre and radius of the circle x^(2) + y^(2) - 6x + 4y - 12 =0 .

The point on the line 5x-y-9=0 ,the length of the tangent from which to the circle x^(2)+y^(2)+6x-4y+12=0 is minimum is

Two circles with radius 5 touches at the point (1,2). If the equation of common tangent is 4x+3y=10 and one of the circle is x^(2)+y^(2)+6x+2y-15=0. Find the equation of other circle.

The length of the chord of contact of the tangents drawn from the point (-2,3) to the circle x^2+y^2-4x-6y+12=0 is: