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Mathematics
Problem
The least value of the expression
x
2
+
4
y
2
+
3
z
2
−
2
x
−
12
y
−
6
z
+
14
x^2 + 4y^2 + 3z^2 - 2x - 12y - 6z + 14
x
2
+
4
y
2
+
3
z
2
−
2
x
−
12
y
−
6
z
+
14
is a. 0 b. 1 c. no least value d. None of the above
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