If a = i + j + k and b = i − j + k, then a·b equals:
If a = i + j + k and b = i − j + k, then a·b equals:
- A. 1
- B. 2
- C. 3
- D. 0
Answer: A) 1
Explanation: 1−1+1=1.
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If a = i + j + k and b = i − j + k, then a·b equals:
Answer: A) 1
Explanation: 1−1+1=1.
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