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If the vectors A = 1i + 2j and B = 2i + 1j, find A · B. (2023)

Practice Questions

1 question
Q1
If the vectors A = 1i + 2j and B = 2i + 1j, find A · B. (2023)
  1. 4
  2. 5
  3. 6
  4. 7

Questions & Step-by-step Solutions

1 item
Q
Q: If the vectors A = 1i + 2j and B = 2i + 1j, find A · B. (2023)
Solution: A · B = (1)(2) + (2)(1) = 2 + 2 = 4
Steps: 0

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