Which point lies on both planes x+y+z=3 and x−y+z=1?
Which point lies on both planes x+y+z=3 and x−y+z=1?
- A. (1,1,1)
- B. (1,0,1)
- C. (2,1,0)
- D. (0,1,2)
Answer: A) (1,1,1)
Explanation: Substitution verifies both equations.
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