 #1
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Homework Statement:
 All below
Relevant Equations:
 All below
AB, AB, AD are Ld, that is, the three vectors lie on the same plane, so, "yes, the points lie on the same plane"
However,
AB CB and AD are Li, that is, the three vectors span the space R3, and dont lie in the same plane, so, how can four points that lie on the same plane, that can generate only vectors that lie on the plane, generate a space?
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