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If the co-ordinates of the points A, B, C, D be (1,2,3),(4,5,7) (-4,3,-6) and (2,9,2) respectively, then find the angle between the lines AB and CD |
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Answer» Since 3/6 = 3/6 = 4/8, AB and CD are parallel `rArr` ANGLE between AB and CD = `0^@` |
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