Find the minimum or maximum value of f (as indicated) subject to the given constraint.Minimum of f(x, y, z) = xy + z,subject to x + y + z = 1
A. Minimum = 
at (1, 1, -1)
B. Minimum = 2 at (1, 1, 1)
C. Minimum = 1 at (0, 0, 1)
D. Minimum = 0 at (1, 1, -1)
Answer: D
Mathematics
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C. - 
D. - 
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A. 
B. 
C. 
D. 
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