Two sinusoidal currents are given by the equations \({i_1} = 50\sin \left( {\omega t + \frac{\pi }{4}} \right)\) and \({i_2} = 25\sin \left( {2\omega t - \frac{\pi }{6}} \right)\). The phase difference between them is ________ degrees.
1
75
2
15
3
0
4
Cannot be determine