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If vector A = 5i + 12j and vector B = 12i - 5j, what is the value of A × B?

Practice Questions

1 question
Q1
If vector A = 5i + 12j and vector B = 12i - 5j, what is the value of A × B?
  1. -85
  2. 85
  3. 0
  4. 60

Questions & Step-by-step Solutions

1 item
Q
Q: If vector A = 5i + 12j and vector B = 12i - 5j, what is the value of A × B?
Solution: A × B = |i j k| |5 12 0| |12 -5 0| = (0 - 0)i - (0 - 0)j + (5*-5 - 12*12)k = -85k.
Steps: 0

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