Find the gradient field F of the function f.f(x, y, z) = ex4 + y8 + z9
A. F = x4ex4 + y8 + z9i + y8ex4 + y8 + z9j + z9ex4 + y8 + z9k
B. F = x3ex4 + y8 + z9i + y7ex4 + y8 + z9j + z8ex4 + y8 + z9k
C. F = 4x3ex4i + 8y7ey8j + 9z8e z9k
D. F = 4x3ex4 + y8 + z9i + 8y7ex4 + y8 + z9j + 9z8ex4 + y8 + z9k
Answer: D
Mathematics
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