The length of perpendicular from origin to the plane r · (2i − 3j + 6k) + 14 = 0 is:
The length of perpendicular from origin to the plane r · (2i − 3j + 6k) + 14 = 0 is:
- A. 2 units
- B. 14 units
- C. 7 units
- D. 0 units
Answer: A) 2 units
Explanation: Equation is 2x − 3y + 6z + 14 = 0. Distance from origin = |14| / √(2² + (−3)² + 6²) = 14 / √(4+9+36) = 14 / 7 = 2 units.
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