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If vector A = 3i + 4j and vector B = 2i - j, what is the dot product A · B?

Practice Questions

1 question
Q1
If vector A = 3i + 4j and vector B = 2i - j, what is the dot product A · B?
  1. 10
  2. 5
  3. 7
  4. 8

Questions & Step-by-step Solutions

1 item
Q
Q: If vector A = 3i + 4j and vector B = 2i - j, what is the dot product A · B?
Solution: A · B = (3)(2) + (4)(-1) = 6 - 4 = 2.
Steps: 0

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