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The scalar triple product [a b c] geometrically represents:
AThe angle between a and (b × c)
BThe unit normal to the plane of a, b, c
CThe sum of magnitudes a + b + c
DVolume of the parallelepiped with edges a, b, c
Answer & Solution
Correct answer: D. Volume of the parallelepiped with edges a, b, c
[a b c] = a · (b × c) = SIGNED VOLUME of the parallelepiped with edges a, b, c. If 0, the three vectors are COPLANAR.
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