Answer: 0 (zero vector).
- A 1 (a scalar value)
- B j (the unit vector)
- C k (the unit vector)
- D 0 (zero vector)
Correct answer: D. 0 (zero vector)
Explanation: The cross product of any vector with itself is the zero vector because sin(0) = 0.
Triangle law of vector addition: placing vector b at the head of vector a, the diagonal from the start to the final head gives the resultant a + b.
Concept context
Vectors, dot product, cross product, and geometric applications