In a polar coordinate system, the midpoint of the line segment whose endpoints are \(\left( 8, \frac{5 \pi}{12} \right)\) and \(\left( 8, -\frac{3 \pi}{12} \right)\) is the point \((r, \theta)\) Enter \((r, \theta)\) where \(r>0\) and \(0 \le \theta < 2 \pi\)
