Find the Quotient $\frac{z_{1}}{z_{2}}$ For the Complex Numbers $z_{1}=7\left(\cos 220^{\circ}+i \sin 220^{\circ}\right)$

question 19

Essay

Find the quotient $\frac{z_{1}}{z_{2}}$ for the complex numbers
$z_{1}=7\left(\cos 220^{\circ}+i \sin 220^{\circ}\right)$
and
$z_{2}=2\left(\cos 160^{\circ}+i \sin 160^{\circ}\right)$

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A legal principle that prevents a party from retracting a promise which the other party has reasonably relied upon to their detriment.

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