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Mathematics
Mathematics
Problem
If
y
=
c
y = c
y
=
c
is a tangent to the circle
x
2
+
y
2
−
2
x
+
2
y
−
2
=
0
x^2 + y^2 - 2x + 2y - 2 = 0
x
2
+
y
2
−
2
x
+
2
y
−
2
=
0
at
(
1
,
1
)
(1, 1)
(
1
,
1
)
, then the value of
c
c
c
is-
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