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Mathematics
Problem
If
y
+
3
x
=
0
y + 3x = 0
y
+
3
x
=
0
is the equation of a chord of the circle,
x
2
+
y
2
−
30
x
=
0
x^2 + y^2 - 30x = 0
x
2
+
y
2
−
30
x
=
0
, then the equation of the circle with this chord as diameter is : [JEE-MAIN ONLINE-2015] (1)
x
2
+
y
2
+
3
x
+
9
y
=
0
x^2 + y^2 + 3x + 9y = 0
x
2
+
y
2
+
3
x
+
9
y
=
0
(2)
x
2
+
y
2
−
3
x
−
9
y
=
0
x^2 + y^2 - 3x - 9y = 0
x
2
+
y
2
−
3
x
−
9
y
=
0
(3)
x
2
+
y
2
−
3
x
+
9
y
=
0
x^2 + y^2 - 3x + 9y = 0
x
2
+
y
2
−
3
x
+
9
y
=
0
(4)
x
2
+
y
2
+
3
x
−
9
y
=
0
x^2 + y^2 + 3x - 9y = 0
x
2
+
y
2
+
3
x
−
9
y
=
0
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