Find the potential function f for the field F.F = 
i + 
j - 
k
A. f(x, y, z) = 
+ C
B. f(x, y, z) = 
+ ln z + C
C. f(x, y, z) = 
+ C
D. f(x, y, z) = 
+ C
Answer: C
Mathematics
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A. 2
B. 
C. - 
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A. 
B. - 
C. -2
D. 2
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