Question: Under what conditions are the following true for vectors u and v in IR2 or IR3? (a) ||u + v|| = ||u|| + ||v|| (b)

Under what conditions are the following true for vectors u and v in IR2 or IR3?
(a) ||u + v|| = ||u|| + ||v||
(b) ||u + v|| = ||u|| - ||v||

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a The geometry of the vectors in Figure 126 suggests that if u v u v then u and v point in the same direction This means that the angle between them m... View full answer

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