What this vector equation means

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I have this equation

K = (A, B, C) / |A x B|

  • A, B, C are 3D vectors.
  • K should be number, not vector.

How is this calculated, or what this expression means?

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$ (A, B, C) $ seems to be the mixed product, the volume of the parallelepiped defined by $A,B,C$.

In this case, $K$ is the height of the parallelepiped because $|A\times B|$ is the area of one side.