Let $z _ { 1 } = 2 \left( \cos \frac { 5 \pi } { 6 } + i \sin \frac { 5 \pi } { 6 } \right)$

question 9

Essay

Let $z _ { 1 } = 2 \left( \cos \frac { 5 \pi } { 6 } + i \sin \frac { 5 \pi } { 6 } \right)$ and $z _ { 2 } = 5 \left( \cos\frac { \pi } { 3 } + i \sin \frac { \pi } { 3 } \right)$ . Find $Z _ { 1 } Z _ { 2 }$

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Definitions:

Five-Point Scale

A measurement tool or survey response option scale that utilizes five discrete points, often used for evaluating attitudes, opinions, or behaviors.

Participants

Individuals who take part in a study or experiment, contributing data for analysis.

Ratio Scales

Measurement scales that have a true zero point and allow for comparisons of absolute magnitude; examples include height, weight, and duration.

Absolute Zero

The point at which there is a complete absence of heat, theoretically the lowest possible temperature, -273.15°C or 0K.