\begin{aligned} &\text { Q2. [2 Marks]: Integrate } f(x, y, z)=\frac{x+y+z}{x^{3}+y^{3}+z^{3}} \text { over the path } r(t)=t \hat{\imath}+t \hat{\jmath}+t k\\ &\text { with } 0

\text { . } \end{aligned}