0 votes 0 votes If $\overrightarrow {r}= x\hat{a_{x}}+y\hat{a_{y}}+z\hat{a_{z}}$ and $\mid \overrightarrow{r} \mid= r$ , then $\text{div} ( r^{2} \nabla ( \text{ln }r ) )$ = _______ . Vector Analysis gate2014-ec-2 vector-analysis numerical-answers + – Milicevic3306 asked Mar 26, 2018 recategorized Mar 3, 2021 by Lakshman Bhaiya Milicevic3306 16.0k points 87 views answer comment Share Follow See all 0 reply Please log in or register to add a comment.