\({d_1}:\left\{ \begin{array}{l}x = 3t\\y = 1 + t\\z = 5t\end{array} \right.\).

\({d_2}:\left\{ \begin{array}{l}x = 2\\y = 2 + t\\z = 1 + t\end{array} \right.\).

\({d_3}:\dfrac{{x - 2}}{3} = \dfrac{y}{2} = \dfrac{{z - 1}}{{ - 5}}\).

\({d_4}:\dfrac{{x + 2}}{2} = \dfrac{y}{{ - 1}} = \dfrac{{z + 1}}{2}\).