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A-Level Maths Edexcel 9MA0
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#1 Write equation of a circle in general form
Express as
x
2
+
y
2
+
2
g
x
+
2
f
y
+
c
=
0
x^2+y^2+2gx+2fy+c=0
x
2
+
y
2
+
2
g
x
+
2
f
y
+
c
=
0
.