jee-main 2015 Q66

jee-main · India · 10apr Circles Tangent Lines and Tangent Lengths

The number of common tangents to the circles $x^2 + y^2 - 4x - 6y - 12 = 0$ and $x^2 + y^2 + 6x + 18y + 26 = 0$, is:
(1) 1
(2) 2
(3) 3
(4) 4

The number of common tangents to the circles $x^2 + y^2 - 4x - 6y - 12 = 0$ and $x^2 + y^2 + 6x + 18y + 26 = 0$, is:\\
(1) 1\\
(2) 2\\
(3) 3\\
(4) 4