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viniterranova
A question about Analytical Geometry
Those are dot products, correct?
u+v+w=0, therefore one can assume that either u and v are negative, or w is negative. Assume that u and v are negative, so u.v=6, u.w=-10 and v.w=-15, so the sum is -19. Interestingly, the sum is the same if you assume that w is negative instead.
Sorry this isn´t the right answer