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You can apply an inverseinversion which sends two of the spheres in to two parallel hyperplanes.
The rest of the spheres will have the same radii and their centers lie in a hyperplane.
Hence everything follows.
In $\mathbb R^n$, the answer is $n+2$.
You can apply an inverse which sends two of the spheres in to two parallel hyperplanes.
The rest of the spheres will have the same radii and their centers lie in a hyperplane.
Hence everything follows.
In $\mathbb R^n$, the answer is $n+2$.
You can apply an inversion which sends two of the spheres in to two parallel hyperplanes.
The rest of the spheres will have the same radii and their centers lie in a hyperplane.
Hence everything follows.
You can apply an inverse which sends two of the spheres in to two parallel hyperplanes.
The rest of the spheres will have the same radii and their centers lie in a hyperplane.
Hence everything follows.
