Linear Algebra Question of the Day

Test your knowledge with a hand-picked multiple-choice question.

$\textbf{u},\textbf{v} \in $\mathbb{R}^{3}$$ .

Which of the following applies to $\textbf{u} \times \textbf{v} + \textbf{u} \cdot \textbf{v}$ , where " $\cdot$ " and " $\times$ " refer to the dot product and the cross product of two vectors, and "" refers to either scalar or vector addition, as applicable?