9000031210

Given complex numbers $z_1=2\sqrt{3}(\cos \frac{\pi }{6}+\mathrm{i}\sin \frac{\pi }{6})$ and $z_2=\sqrt{3}(\cos \frac{4\pi }{3}+\mathrm{i}\sin \frac{4\pi }{3})$, find the quotient $\frac{z_1}{z_2}$.