Question: Let u = (2, - 2, 3), v = (1, - 3, 4), w = (3, 6, - 4). In each part, evaluate the expression.

Let u = (2, - 2, 3), v = (1, - 3, 4), w = (3, 6, - 4). In each part, evaluate the expression.
(a) || u + v ||
(b) || - 2u || + 2|| u ||
(c) 1 / || w || w

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