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Mathematics
Problem
One of the limiting points of the co-axial system of circles containing the circles
x
2
+
y
2
−
4
=
0
x^2 + y^2 - 4 = 0
x
2
+
y
2
−
4
=
0
and
x
2
+
y
2
−
x
−
y
=
0
x^2 + y^2 - x - y = 0
x
2
+
y
2
−
x
−
y
=
0
is a.
(
2
,
2
)
(\sqrt{2}, \sqrt{2})
(
2
,
2
)
b.
(
−
2
,
2
)
(-\sqrt{2}, \sqrt{2})
(
−
2
,
2
)
c.
(
−
2
,
−
2
)
(-\sqrt{2}, -\sqrt{2})
(
−
2
,
−
2
)
d. None of these
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