Represent the Complex Number Graphically,and Find the Trigonometric Form of the Number

question 16

Multiple Choice

Represent the complex number graphically,and find the trigonometric form of the number. ​
-8i
​

• A)​ \[8 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)\]
• B)​ \[8 ( \cos \pi - i \sin \pi )\]
• C)​ \[8 \left( \cos \frac { 3 \pi } { 2 } - i \sin \frac { 3 \pi } { 2 } \right)\]
• D) \[8 ( \cos \pi + i \sin \pi )\]
• E)​ \[8 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)\]

---

Definitions:

Permissible Variation

The allowable amount of deviation from a specified dimension, shape, or attribute of a material or component.

Orientation

The arrangement or positioning of something relative to a known point or direction.

Characteristic Symbol

A symbol or notation used to represent a specific property or characteristic in mathematical, scientific, or technical contexts.

Position

Refers to the location of an element or feature in a manufactured part, often defined in terms of coordinates or relation to other features.