- #1

- 91

- 4

**A(r)**is deﬁned in spherical polar coordinates by

**A**= (1/r)

**e**

_{r}

Evaluate ∇

^{2}

**A**in spherical polar coordinates

Relevant equation: I'm assuming I have to use the equation 1671 on this website

But I haven't got a clue as to how I would apply it since, for example, I don't know what A

_{θ}is. Any hint on how to get started would help.