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Mathematics
Mathematics
Problem
The locus of the centre of a circle of radius 2 which rolls on the outside of circle
x
2
+
y
2
+
3
x
−
6
y
−
9
=
0
x^2 + y^2 + 3x - 6y - 9 = 0
x
2
+
y
2
+
3
x
−
6
y
−
9
=
0
is a.
x
2
+
y
2
+
3
x
−
6
y
+
5
=
0
x^2 + y^2 + 3x - 6y + 5 = 0
x
2
+
y
2
+
3
x
−
6
y
+
5
=
0
b.
x
2
+
y
2
+
3
x
−
6
y
−
31
=
0
x^2 + y^2 + 3x - 6y - 31 = 0
x
2
+
y
2
+
3
x
−
6
y
−
31
=
0
c.
x
2
+
y
2
+
3
x
−
6
y
+
11
=
0
x^2 + y^2 + 3x - 6y + 11 = 0
x
2
+
y
2
+
3
x
−
6
y
+
11
=
0
d.
x
2
+
y
2
+
3
x
−
6
y
−
36
=
0
x^2 + y^2 + 3x - 6y - 36 = 0
x
2
+
y
2
+
3
x
−
6
y
−
36
=
0
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