Find the shortest distance d between these two lines

Question

Let $L1$ be the line passing through the point $P1=(-2,-11,$9) with direction vector $d2=[0,2,-2]^T$, and let $L2$ be the line passing through the point $P2 = (-2, -1, 11)$ with direction vector $d2 = [-1, 0, -1]^T $ Find the shortest distance $d$ between these two lines, and find a point $Q1$ on $L1$ and a point $Q2$ on $L2$ so that $d(Q1,Q2) = d.$ Use the square root symbol to get the exact value