Distance between $(0,0,0)$ and $(1,0,0)$: $1$. This is inconsistent, so the given points cannot form a regular tetrahedron. Re-evaluate: The problem likely assumes edge length $\sqrt{2}$ or similar. Suppose the three points are $(0,0,0)$, $(1,1,0)$, $(1,0,1)$, and find the fourth $(0,1,1)$. Check distances:

Mon, 04 May 2026 17:03:25 +0000

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