At what points is the given function continuous?f(x, y, z) = ln(x + y + z - 7)

A. All (x, y, z)
B. All (x, y, z) in the first octant
C. All (x, y, z) such that x + y + z > 7
D. All (x, y, z) such that x + y + z ? 7


Answer: C

Mathematics

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