Straight Lines And Pair Of Straight Lines

Let ABC be a triangle with A(\(-\)3, 1) and \(\angle\)ACB = \(\theta\), 0 < \(\theta\) < \({\pi \over 2}\). If the equation of the median through B is 2x + y \(-\) 3 = 0 and the equation of angle bisector of C is 7x \(-\) 4y \(-\) 1 = 0, then tan\(\theta\) is equal to :