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1. |
Let the coordinates of the points A, B, C be (1, 8, 4), (0, -11, 4) and (2, -3, 1) respectively. What are the coordinates of the point D which is the foot of the perpendicular from A on BC? |
A. | (3, 4, -2) |
B. | (4, -2, 5) |
C. | (4, 5, -2) |
D. | (2, 4, 5) |
Answer» D. (2, 4, 5) | |