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Mathematics
Mathematics
Problem
Find all the common tangents to the circles
x
2
+
y
2
−
2
x
−
6
y
+
9
=
0
and
x
2
+
y
2
+
6
x
−
2
y
+
1
=
0.
x^2 + y^2 - 2x - 6y + 9 = 0 \text{ and } x^2 + y^2 + 6x - 2y + 1 = 0.
x
2
+
y
2
−
2
x
−
6
y
+
9
=
0
and
x
2
+
y
2
+
6
x
−
2
y
+
1
=
0.
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