\begin{array}{l}
l:\left( {\begin{array}{*{20}c}
x \\
y \\
z \\
\end{array}} \right) = \left( {\begin{array}{*{20}c}
0 \\
0 \\
3 \\
\end{array}} \right) + \left( {\mu + 2\frac{1}{2}} \right)\left( {\begin{array}{*{20}c}
1 \\
2 \\
0 \\
\end{array}} \right) + \mu \left( {\begin{array}{*{20}c}
1 \\
0 \\
1 \\
\end{array}} \right) \\
l:\left( {\begin{array}{*{20}c}
x \\
y \\
z \\
\end{array}} \right) = \left( {\begin{array}{*{20}c}
0 \\
0 \\
3 \\
\end{array}} \right) + 2\frac{1}{2}\left( {\begin{array}{*{20}c}
1 \\
2 \\
0 \\
\end{array}} \right) + \mu \left( {\begin{array}{*{20}c}
1 \\
2 \\
0 \\
\end{array}} \right) + \mu \left( {\begin{array}{*{20}c}
1 \\
0 \\
1 \\
\end{array}} \right) \\
\end{array}
$
Ik zal alles nog wel een keer in één antwoord zetten!
WvR
11-4-2020