Помогите решить 2 примера по теме комплексные числа.

Решите задачу:

$\\z={z1\over z2}={24(cos75^{\circ}+isin75^{\circ})\over 3(cos30^{\circ}+isin30^{\circ})}=8(cos45^{\circ}+isin45^{\circ})\\ r=8\\ \theta =45^{\circ}={\pi \over 4}\\ z=re^{i\theta}=8e^{{\pi \over 4}i}\\\\$
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$\\z={z1 \over z2}=(i-\sqrt3)^5=(i-\sqrt3)^3*(i-\sqrt3)^2=16\sqrt3+16i\\ r=\sqrt(a^2+b^2)=32\\ cost={\sqrt3 \over 2}\\ sint={1 \over 2}\\ t={\pi \over 6}\\ z=32e^{i{\pi \over6}}\\ {e^{-i{\pi \over 3}} \over 32e^{i{\pi \over6}} }={1 \over 32}{e^{-i{\pi \over 3}-i{\pi \over6}}}={1 \over 32}{e^{-i{\pi\over 2}}}$