For unit vectors a and b making 60°, a·b equals:
For unit vectors a and b making 60°, a·b equals:
- A. 1
- B. √3/2
- C. 1/2
- D. 0
Answer: C) 1/2
Explanation: a·b = |a||b|cos60° = 1/2.
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For unit vectors a and b making 60°, a·b equals:
Answer: C) 1/2
Explanation: a·b = |a||b|cos60° = 1/2.
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