A line has DCs (1/√2, 1/√2, 0). The angle with z-axis is:
A line has DCs (1/√2, 1/√2, 0). The angle with z-axis is:
- A. 0°
- B. 45°
- C. 60°
- D. 90°
Answer: D) 90°
Explanation: Direction cosine with z-axis is 0, hence angle=90°.
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