Find an upper bound for the magnitude |E| of the error in the linear approximation L to f at the given point over the given region.
at 
R: |x - 1| ? 0.1, |y - 1| ? 0.1, |z - 1| ? 0.1
A. |E| ? 0.338
B. |E| ? 0.315
C. |E| ? 0.405
D. |E| ? 0.378
Answer: C
Mathematics
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+ 
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