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Mathematics
Mathematics
Problem
The plane
x
+
2
y
−
z
=
4
x + 2y - z = 4
x
+
2
y
−
z
=
4
cuts the sphere
x
2
+
y
2
+
z
2
−
x
+
z
−
2
=
0
x^2 + y^2 + z^2 - x + z - 2 = 0
x
2
+
y
2
+
z
2
−
x
+
z
−
2
=
0
in a circle of radius
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