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If A = 4i - 3j and B = -2i + 5j, calculate A · B.

Practice Questions

1 question
Q1
If A = 4i - 3j and B = -2i + 5j, calculate A · B.
  1. -7
  2. 7
  3. 1
  4. 0

Questions & Step-by-step Solutions

1 item
Q
Q: If A = 4i - 3j and B = -2i + 5j, calculate A · B.
Solution: A · B = (4)(-2) + (-3)(5) = -8 - 15 = -23.
Steps: 0

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