5Question: A computational biotechnologist is modeling the phase alignment of two synthetic gene oscillators represented as complex numbers on the unit circle, given by $ z_1 = \cos heta_1 + i \sin heta_1 $ and $ z_2 = \cos heta_2 + i \sin heta_2 $. If the angle between them, measured as the smallest positive argument of $ z_1 \overlinez_2 $, is $ 60^\circ $, find the value of $ \cos( heta_1 - heta_2) $. - Portal da Acústica