Find the Trigonometric Form of the Complex Number Shown Below $- 10 i$

question 167

Multiple Choice

Find the trigonometric form of the complex number shown below. $- 10 i$

• A) \(10 ( \cos 0 + i \sin 0 )\)
• B) \(10 ( \cos \pi + i \sin \pi )\)
• C) \(10 \left( \cos \frac { 3 \pi } { 2 } + i \sin \frac { 3 \pi } { 2 } \right)\)
• D) \(10 \left( \cos \frac { \pi } { 4 } + i \sin \frac { \pi } { 4 } \right)\)
• E) \(10 \left( \cos \frac { \pi } { 2 } + i \sin \frac { \pi } { 2 } \right)\)

---

Definitions:

Special Dividend

A one-time payment made by a company to its shareholders, often indicative of surplus profit not reinvested in the business.

Regular Dividend

A consistent payment made by a company to shareholders out of its profits.