Mathematics · Three Dimensional Geometry
रेखाएं x = ay + b, z = cy + d और x = αy + β, z = γy + δ एक-दूसरे पर लंबवत होंगी, यदि:
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- 1aα + cγ + 1 = 0✓
- 2aα + bβ + 1 = 0
- 3bβ + cγ + 1 = 0
- 4aα + bβ + cγ + 1 = 0
सही उत्तर देखें
aα + cγ + 1 = 0
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