The angle between x-axis and line with DRs (1,1,1) is:
The angle between x-axis and line with DRs (1,1,1) is:
- A. cos⁻¹(1/√3)
- B. 45°
- C. 60°
- D. 90°
Answer: A) cos⁻¹(1/√3)
Explanation: Cosθ=1/√3.
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