Rewrite the Expression in Terms of Exponentials and Simplify the Results

question 79

Multiple Choice

Rewrite the expression in terms of exponentials and simplify the results.
- $\cosh 3 x - \sinh 3 x$

• A) \(2 e ^ { - 3 x }\)
• B) \(\mathrm { e } ^ { 3 x } - \mathrm { e } ^ { - 3 \mathrm { x } }\)
• C) \(- 3 x\)
• D) \(\mathrm { e } ^ { - 3 \mathrm { x } }\)

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Definitions:

Period Cost

Expenditures that are not directly tied to the production process and are expensed in the period in which they are incurred.

Product Cost

The total expense incurred to produce and make ready for sale a product, including direct materials, labor, and overhead costs.

Opportunity Cost

The cost of foregoing the next best alternative when making a decision.

Total Expected Cost

A projection of the total costs associated with a project or business activity, including both fixed and variable costs.