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Mathematics
Mathematics
Problem
If the point
(
λ
,
−
λ
)
(\lambda, -\lambda)
(
λ
,
−
λ
)
lies inside the circle
x
2
+
y
2
−
4
x
+
2
y
−
8
=
0
x^2 + y^2 - 4x + 2y - 8 = 0
x
2
+
y
2
−
4
x
+
2
y
−
8
=
0
, then find range of
λ
\lambda
λ
.
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