3-d

Question: Which of the following set of points are non- collinear



1) (1, –1, 1), (–1, 1, 1), (0, 0, 1)
2) (1, 2, 3), (3, 2, 1), (2, 2, 2)
3) (–2,4, –3), (4, –3, –2), (–3, –2, 4)
4) (2, 0, –1), (3, 2, –2), (5, 6, –4)
Solution: Explanation: No Explanation
System of co-ordinates Direction cosines and direction ratios Projection

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