Find the Exact Value $\cos \left( 2 \tan ^ { - 1 } \frac { 5 } { 12 } \right)$

question 62

Multiple Choice

Find the exact value. $\cos \left( 2 \tan ^ { - 1 } \frac { 5 } { 12 } \right)$

• A) \(13 / 6\)
• B) \(5 / 6\)
• C) \(13 / 119\)
• D) \(169 / 119\)
• E) \(119 / 116\)

---

Definitions:

Social Traps

Situations where individuals or groups are unable to escape adverse conditions due to conflicting interests.

Drought

An extended period of deficient precipitation resulting in water scarcity that affects ecosystems, agriculture, and water supply.

Water Reserves

Stored or available water in natural or artificial reservoirs that can be used for various purposes.

Reciprocity Norm

The reciprocity norm is a social norm that expects individuals to respond to each other in kind, returning benefits for benefits received.