If \( \vec{u} \) and \( \vec{v} \) are unit vectors and \( \theta \...

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If \( \vec{u} \) and \( \vec{v} \) are unit vectors and \( \theta \) is the acute angle
\( \mathrm{P} \) between them, then \( 2 \vec{u} \times 3 \vec{v} \) is a unit vector for

W
(1) no value of \( \theta \)
(2) exactly one value of \( \theta \)
(3) exactly two values of \( \theta \)
(4) more than two values of \( \theta \)
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