Question: If u, v, and w are vectors in R n , n 2, and c is a scalar, explain why the following expressions make

If u, v, and w are vectors in Rn, n ≥ 2, and c is a scalar, explain why the following expressions make no sense:

(a)

∥u · v∥


(b)

u · v + w


(c)

u · (v · w)


(d)

c · (u + w)

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