Which of the following expressions is meaning | vedclass

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(A) Let $u$,$v$,and $w$ be vectors.$1$. Consider $u \cdot (v 	imes w)$: The expression $(v 	imes w)$ results in a vector. The dot product of a vecto

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$u \cdot (v 	imes w)$

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(A) Let $u$,$v$,and $w$ be vectors.$1$. Consider $u \cdot (v 	imes w)$: The expression $(v 	imes w)$ results in a vector. The dot product of a vector $u$ with the resulting vector $(v 	imes w)$ is defined and results in a scalar. Thus,this expression is meaningful.$2$. Consider $(u \cdot v) \cdot w$: The expression $(u \cdot v)$ results in a scalar. The dot product of a scalar with a vector $w$ is not defined. Thus,this expression is not meaningful.$3$. Consider $(u \cdot v) 	imes w$: The expression $(u \cdot v)$ results in a scalar. The cross product of a scalar with a vector $w$ is not defined. Thus,this expression is not meaningful.Therefore,only the first expression is meaningful.

Which of the following expressions is meaningful?

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