Write the Complex Number in Trigonometric Form $$r ( \cos \theta + i \sin \theta )$$

question 433

Multiple Choice

Write the complex number in trigonometric form $$r ( \cos \theta + i \sin \theta )$$ with θ in the interval [0°, 360°) .
- $8 \sqrt { 3 } + 8 \mathrm { i }$

• A) \(16 \left( \cos 300 ^ { \circ } + i \sin 300 ^ { \circ } \right)\)
• B) \(16 \left( \cos 30 ^ { \circ } + i \sin 30 ^ { \circ } \right)\)
• C) \(16 \left( \cos 60 ^ { \circ } + i \sin 60 ^ { \circ } \right)\)
• D) \(16 \left( \cos 330 ^ { \circ } + i \sin 330 ^ { \circ } \right)\)

---

Definitions:

Product Cost

The total cost associated with making or acquiring a product, including direct materials, direct labor, and overhead.

Period Cost

Costs that are not directly tied to the production process and are expensed in the period they are incurred, such as selling, general, and administrative expenses.

Fixed Cost

Costs that do not vary with the level of production or sales, such as rent, salaries, and insurance premiums.

Variable Cost

A cost that varies with the level of output or sales, such as materials and labor directly involved in production.