Find the equations of direct common tangents for two circles
x2 + y2 + 6x − 2y + 1 = 0, x2 + y2 − 2x − 6y + 9 = 0
Find the equations of transverse common tangents for two circles
x2 + y2 + 6x − 2y + 1 =0 , x2 + y2 − 2x − 6y + 9 = 0
Find the position of the circles x2+y2−2x−6y+9=0 and x2+y2+6x−2y+1=0 with respect to each other.