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If $\overline{r} = xi + yj + zk$ and $r = |\overline{r}| \neq 0$ then div. ($r^{n}\overline{r}$) =}

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$\text{div}(r^n \overline{r})$ is a standard identity often appearing in electromagnetic and gravitational problems.

Updated On: Jul 3, 2026

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