Find the Product $300 ^ { \circ }$ ] [5 $\left. \operatorname { cis } 120 ^ { \circ } \right]$

question 305

Multiple Choice

Find the product. Write the product in rectangular form, using exact values.
-[4 cis $300 ^ { \circ }$ ] [5 $\left. \operatorname { cis } 120 ^ { \circ } \right]$

• A) \(- 10 - 10 \sqrt { 3 } \mathrm { i }\)
• B) \(10 + 10 \sqrt { 3 } i\)
• C) \(10 \sqrt { 3 } - 10 \mathrm { i }\)
• D) \(- 10 \sqrt { 3 } + 10 \mathrm { i }\)

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Definitions:

Long-Run Equilibrium

A state in which all factors of production are used efficiently, market supply and demand are balanced, and there is no tendency for change in the economic variables.

Expansionary Gap

A situation where the actual output in an economy exceeds the potential output due to high demand, often leading to inflationary pressures.

Short-Run Aggregate Supply

The total supply of goods and services that firms in an economy plan on selling during a short time period, given the current level of prices.