Use the Appropriate Addition Formula to Find the Exact Value $\tan \left( \frac { 13 \pi } { 12 } \right)$

question 26

Multiple Choice

Use the appropriate addition formula to find the exact value of the expression.
- $\tan \left( \frac { 13 \pi } { 12 } \right)$

• A) \(\frac { 2 + \sqrt { 3 } } { 4 }\)
• B) \(2 + \sqrt { 3 }\)
• C) \(\frac { 2 - \sqrt { 3 } } { 4 }\)
• D) \(2 - \sqrt { 3 }\)

---

Definitions:

Zooplankton

Small floating or weakly swimming organisms that are a component of the aquatic food web.

Freshwater Supply

Refers to the availability of water from sources such as rivers, lakes, and aquifers that is not salty and is vital for human consumption, agriculture, and supporting biodiversity.

River Zone

The area or region surrounding a river, including its banks and adjacent land, which can play critical roles in ecosystem function and biodiversity.

Source Zone

The specific location or area where pollutants originate and from which contamination spreads to surrounding environments.