A.A.
\(\left\{ \begin{array}{l}
x = 1 + t\\
y = - 1 - 3t\\
z = 8 - 4t
\end{array} \right.\)
\(\left\{ \begin{array}{l}
x = 1 + t\\
y = - 1 - 3t\\
z = 8 - 4t
\end{array} \right.\)
B.B.
\(\left\{ \begin{array}{l}
x = 1 - 4t\\
y = - 3 + 3t\\
z = 4 - t
\end{array} \right.\)
\(\left\{ \begin{array}{l}
x = 1 - 4t\\
y = - 3 + 3t\\
z = 4 - t
\end{array} \right.\)
C.C.
\(\left\{ \begin{array}{l}
x = 3 - 4t\\
y = 1 + 3t\\
z = 2 - t
\end{array} \right.\)
\(\left\{ \begin{array}{l}
x = 3 - 4t\\
y = 1 + 3t\\
z = 2 - t
\end{array} \right.\)
D.D.
\(\left\{ \begin{array}{l}
x = 1 + 3t\\
y = - 3 + 4t\\
z = 4 - t
\end{array} \right.\)
\(\left\{ \begin{array}{l}
x = 1 + 3t\\
y = - 3 + 4t\\
z = 4 - t
\end{array} \right.\)
