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# help

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What is the area of the parallelogram with vertices $$\begin{pmatrix} 3 \\ 1\\ 2 \end{pmatrix},$$ $$\begin{pmatrix} 2 \\ 1\\4\end{pmatrix}$$$$\begin{pmatrix} 4\\2\\4 \end{pmatrix},$$and $$\begin{pmatrix} 5\\2\\2 \end{pmatrix}?$$

Apr 29, 2020