Dot Product of Two 3D Vectors
Easyvectorsdot product
Find the dot product (2, -1, 3) · (1, 4, -2).
- A−8
- B−4
- C4
- D8
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Answer: A. −8
Multiply corresponding components and add: 2(1) + (−1)(4) + 3(−2) = 2 − 4 − 6 = −8. A dot product is a scalar.
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