3d Geometry

The line \(l_1\) passes through the point (2, 6, 2) and is perpendicular to the plane \(2x+y-2z=10\). Then the shortest distance between the line \(l_1\) and the line \(\frac{x+1}{2}=\frac{y+4}{-3}=\frac{z}{2}\) is :