- #1
Dumbledore211
- 111
- 1
Homework Statement
The problem states that it is required to prove that ∇f(r)=f'(r)R/r where r is the vector field
Homework Equations
∇=(∂/∂x)i + (∂/∂y)j + (∂/∂z)k
R= xi + yj +zk
r = √(x^2+y^2+z^2)
The Attempt at a Solution
The trouble that I am having with this problem is the inability to truly comprehend what f(r) truly means⋅ Is f(r) dependent on the vector field R?