Solution: Convert to Cartesian coordinates using $\rho = \sqrt{x^2 + y^2 + z^2}$, $x = \rho \sin\phi \cos\theta$, $y = \rho \sin\phi \sin\theta$, $z = \rho \cos\phi$. Multiply both sides by $\rho$:

Mon, 04 May 2026 16:14:32 +0000

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