Perform the Operation Shown Below and Leave the Result in Trigonometric

question 70

Multiple Choice

Perform the operation shown below and leave the result in trigonometric form.
$$\left[ 6 \left( \cos 90 ^ { \circ } + i \sin 90 ^ { \circ } \right) \right] \left[ 2 \left( \cos 280 ^ { \circ } + i \sin 280 ^ { \circ } \right) \right]$$

• A) \(8 \left( \cos 370 ^ { \circ } + i \sin 370 ^ { \circ } \right)\)
• B) \(12 \left( \cos 252 ^ { \circ } + i \sin 252 ^ { \circ } \right)\)
• C) \(12 \left( \cos 190 ^ { \circ } + i \sin 190 ^ { \circ } \right)\)
• D) \(8 \left( \cos 190 ^ { \circ } + i \sin 190 ^ { \circ } \right)\)
• E) \(12 \left( \cos 370 ^ { \circ } + i \sin 370 ^ { \circ } \right)\)

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Definitions:

Income Statements

Financial documents summarizing a company's revenues, expenses, and profits over a specific period, showing its financial performance.

Contribution Margin

The amount remaining from sales revenue after variable costs have been deducted, indicating how much contributes towards covering fixed costs and generating profit.

Call Center

A centralized office used for receiving or transmitting a large volume of requests by telephone, often involving customer service or technical support.

Mixed Cost

An expense that has both fixed and variable components, changing in total with the level of activity but not in direct proportion.