3) Let P2 be the plane in R' which contains the lines in R' with vector equations ) A vector equation of P2 is x =

\mathbf{x}_{1}=\left[\begin{array}{c}

4 \\

2 \\

-3

\end{array}\right]+t\left[\begin{array}{l}

2 \\

2 \\

1

\end{array}\right] \text { and } \mathbf{x}_{2}=\left[\begin{array}{c}

8 \\

6 \\

-1

\end{array}\right]+t\left[\begin{array}{l}

1 \\

3 \\

0

\end{array}\right]