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Mathematics
Problem
Show that the equation
x
2
+
y
2
−
4
x
+
6
y
−
5
=
0
x^2 + y^2 - 4x + 6y - 5 = 0
x
2
+
y
2
−
4
x
+
6
y
−
5
=
0
represents a circle. Find its centre and radius.
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