Find the gradient field F of the function f.f(x, y, z) = x7y6 + 
A. F = (7x6 + 8x7)i + 6y5j - 
k
B. F = 7x6y6i + 6x7y5j - 
k
C. F = 
i + 6x7y5j - 
k
D. F = (7x6 + 8x7)i + 6y5j + 
k
Answer: C
Mathematics
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A. - 
B. -1
C. 1
D. 
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= -1
A. Yes B. No
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A. 
- 
= 1
B. 
- 
= 1
C. 
- 
= 1
D. 
- 
= 1
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