Is there a way to plot separate functions in 3D using Wolfram Alpha?

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Is there a way to plot separate functions in 3D using Wolfram Alpha? Am I doing something wrong?

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Similar problem with GeoGebra enter image description here

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You can plot multiple functions in GeoGebra. It looks like it doesn't handle inequalities well in 3D; try writing them as strict equalities.

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Just to give an alternative via CalcPlot3D:

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