Find 'all equation to the four common tangents to the circles `x^2 + y^2= 25` and `(x-12)^2+y^2=9`

Find the equations to the common tangents of the circles x^2+y^2-2x-6y+9=0 and x^2+y^2+6x-2y+1=0

Find the equations to the common tangents of the circles x^2+y^2-2x-6y+9=0 and x^2+y^2+6x-2y+1=0

Find the equations of the common tangents to the circle x^2+y^2 = 8 and the parabola y^2 = 16x.

Find the equations of the common tangents to the circle x^(2)+y^(2)=8 and the parabola y^(2)=16x

Find the equations to the common tangents of the circles x^(2)+y^(2)-2x-6y+9=0 and x^(2)+y^(2)+6x-2y+1=0

Find the equation of the common tangent to the circle x^(2)+y^(2)=8 and the parabola y^(2)=16x .

Find the number of common tangents of the circles x^2+y^2-2x-6y+9=0 and x^2+y^2+6x-2y+1=0

The equations of the two common tangents to the circle x^(2) +y^(2)=2a^(2) and the parabola y^(2)=8ax are-