Trigonometry
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Given z1=12(cos30°+isin30°)z_1=12\left(\cos30\degree+i\sin30\degree\right) and z2=3(cos50°+isin50°)z_2=3\left(\cos50\degree+i\sin50\degree\right), find the quotient z1z2\frac{z_1}{z_2}.
z1z2=4CiS(20°)\frac{z_1}{z_2}=4CiS\left(20\degree\right)
z1z2=9CiS(340°)\frac{z_1}{z_2}=9CiS\left(340\degree\right)
z1z2=9CiS(20°)\frac{z_1}{z_2}=9CiS\left(20\degree\right)
z1z2=4CiS(340°)\frac{z_1}{z_2}=4CiS\left(340\degree\right)