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Mathematics
Mathematics
Problem
The equation of the sphere concentric with the sphere
2
x
2
+
2
y
2
+
2
z
2
−
6
x
+
2
y
−
4
z
=
1
2x^2 + 2y^2 + 2z^2 - 6x + 2y - 4z = 1
2
x
2
+
2
y
2
+
2
z
2
−
6
x
+
2
y
−
4
z
=
1
and double its radius is
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