Find the Exact Value of the Expression $$\tan ^ { - 1 } \left[ \tan \left( - \frac { \pi } { 8 } \right) \right]$$

question 65

Multiple Choice

Find the exact value of the expression. Do not use a calculator.
- $$\tan ^ { - 1 } \left[ \tan \left( - \frac { \pi } { 8 } \right) \right]$$

• A) \(- 8 \pi\)
• B) \(\frac { \pi } { 8 }\)
• C) \(8 \pi\)
• D) \(- \frac { \pi } { 8 }\)

---

Definitions:

Setup Cost

The cost to prepare a machine or process for production.

Clearance Priced

Items sold at a significant discount to clear inventory, often due to overstock or the discontinuation of specific products.

Demand Level

The quantity of a product or service that consumers are willing and able to purchase at various prices during a specified time period.