Verify That Each Equation Is an Identity $$\cos ( 3 x ) = \cos ^ { 3 } x - 3 \sin ^ { 2 } x \cos x$$

question 150

Essay

Verify that each equation is an identity.
- $$\cos ( 3 x ) = \cos ^ { 3 } x - 3 \sin ^ { 2 } x \cos x$$

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Definitions:

Fixed Costs

Fixed costs are business expenses that remain constant regardless of the level of production or sales, such as rent or salaries.

Profit-maximizing

The process of adjusting output and production levels to achieve the highest possible profits.

Output Units

A measure of production that represents the total quantity of goods and services produced over a specific period of time.

ATC

Average Total Cost, a firm's total cost divided by its total output.