(Solved): Find the Propagation Error, and the relative true error, for the function \[ \begin{array}{l} f(x, ...

Find the Propagation Error, and the relative true error, for the function \[ \begin{array}{l} f(x, y, z)=x \ln \left(y^{2}-2\right)-3 z \text { for } \\ x=3 \quad \text { and } \Delta x=0.2 \\ y=15 \quad \text { and } \Delta y=0.1 \\ z=3 \quad \text { and } \Delta z=0.2 \end{array} \]