Perform the Indicated Operation $\left[ 4 \operatorname { cis } \frac { 5 \pi } { 9 } \right] ^ { 2 }$

question 404

Multiple Choice

Perform the indicated operation. Give answers in rectangular form expressing real and imaginary parts to four decimal
places.
- $\left[ 4 \operatorname { cis } \frac { 5 \pi } { 9 } \right] ^ { 2 }$

• A) \(- 3.7588 - 1.3681 \mathrm { i }\)
• B) \(- 15.0351 - 5.4723 \mathrm { i }\)
• C) \(- 2.7784 + 15.7569 \mathrm { i }\)
• D) \(- 5.4723 - 15.0351 \mathrm { i }\)

Analyze historical economic growth trends among different nations.

Comprehend the concept of productivity and its determinants.

Identify how differences in productivity and resources contribute to variations in standards of living.

Evaluate how economists assess economic progress.

---

Definitions:

Administrative Expense

Costs related to the general operation of a business that are not directly tied to production, including salaries of non-production staff, office supplies, and utilities.

Indirect Material Cost

Indirect material costs are costs related to materials that do not directly become part of the final product but are necessary for the manufacturing process.

Direct Material Cost

The expense of basic materials and parts directly utilized in manufacturing a product.

Period Cost

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