Question Detail
Question
If vectors A = 2i + 3j − k and B = 4i − 2j + 3k, find their dot product A · B.
Correct Answer
Option A is the correct answer.
Detailed Explanation
A·B = 2×4 + 3×(−2) + (−1)×3 = 8 − 6 − 3 = −1.
Hint
Multiply corresponding components and sum.