Find the equations to the transverse common tangents of the circles .
The centre and radii of the given circles are
Hence circles donot intersect with eachother and each will be outside the other,transverse common tangents can be drawn. Let C1 =internal centre of similitude
C1 divides AB in the ratio 3:1
Equation to the pair of transverse common tangents through C1 to circle 1 is
Therefore the equation to the tangents are