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* .1 ; 2 (2 نقطة) A vector orthogonal to the plane through the points (-1,0,0), (0, -1, -2), (2,3,4) is < 10, -10,0 > o
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* .1 ; 2 (2 نقطة) A vector orthogonal to the plane through the points (-1,0,0), (0, -1, -2), (2,3,4) is < 10, -10,0 > o
* .1 ; 2 (2 نقطة) A vector orthogonal to the plane through the points (-1,0,0), (0, -1, -2), (2,3,4) is < 10, -10,0 > o < -2, -10,9 > 0 < 6, -10,3 > 0 < 2, -10,6 > O