How many unit vectors are parallel to a given vector v 0? (a) 1, (b) 2,

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How many unit vectors are parallel to a given vector v ≠ 0? 

(a) 1,

(b) 2,

(c) 3,
(d) ∞,

(e) Depends on the norm.

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Applied Linear Algebra

ISBN: 9783319910406

2nd Edition

Authors: Peter J. Olver, Chehrzad Shakiban

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