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Mathematics
Mathematics
Problem
Find the equation of the circle concentric with the circle
x
2
+
y
2
−
6
x
+
12
y
+
15
=
0
x^2 + y^2 - 6x + 12y + 15 = 0
x
2
+
y
2
−
6
x
+
12
y
+
15
=
0
and of double its area.
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