Find an upper bound for the magnitude |E| of the error in the approximation f(x, y) ? L(x, y) at the given point over the given region R.
at (1, 1, 1); R: |x - 1| ? 0.1, |y - 1| ? 0.1, |z - 1| ? 0.1
A. |E| ? 0.0154
B. |E| ? 0.0173
C. |E| ? 0.0231
D. |E| ? 0.0185
Answer: A
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