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\textbf{Partial Differentiation}

\textit{\textbf{Functions of more than one variable}}
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\textbf{Question}

Specify the domain of the function.

$$f(x,y,z) = \frac{xyz}{x^2+y^2+z^2}$$


\textbf{Answer}

The domain consists of all points in 3-D space, except for the origin.

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