del (1/r)= -r/r^3 where r = (x^2+y^2+z^2)^-1/2

asked by guest
on Sep 24, 2024 at 5:14 pm



You asked:

Solve the system of equations:\[\begin{aligned}d e \cdot l\left( \frac{1}{r} \right) &= \frac{-r}{{r}^{3}}\\r &= \frac{{\left( {x}^{2} + {y}^{2} + {z}^{2} \right)}^{-1}}{2}\end{aligned}\]

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