Find the angle between the lines y=(2+3)xy = (2 + \sqrt{3})xy=(2+3)x and y=(2−3)xy = (2 - \sqrt{3})xy=(2−3)x.
30∘30^\circ30∘
45∘45^\circ45∘
60∘60^\circ60∘
90∘90^\circ90∘