What are the most common mistakes students make in Vectors & 3D Geometry?
the cross product is a VECTOR perpendicular to both inputs; the DOT product is the scalar.
Top mistakes to avoid in Vectors & 3D Geometry: • the cross product is a VECTOR perpendicular to both inputs; the DOT product is the scalar. • expecting the dot product to be a vector. • expecting the cross product to be a scalar. • confusing direction ratios with direction cosines (which are normalised).
Common mistake
the cross product is a VECTOR perpendicular to both inputs; the DOT product is the scalar.
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