Use Identities to Find the Exact Value $$\cos \frac { 7 \pi } { 12 } \cos \frac { 5 \pi } { 12 } + \sin \frac { 7 \pi } { 12 } \sin \frac { 5 \pi } { 12 }$$

question 160

Multiple Choice

Use Identities to find the exact value.
- $$\cos \frac { 7 \pi } { 12 } \cos \frac { 5 \pi } { 12 } + \sin \frac { 7 \pi } { 12 } \sin \frac { 5 \pi } { 12 }$$

• A) - 1
• B) \(\frac { 1 } { 2 }\)
• C) \(\frac { \sqrt { 2 } } { 2 }\)
• D) \(\frac { \sqrt { 3 } } { 2 }\)

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Individuals involved in discussions aimed at reaching an agreement or resolving differences.

Cultural Differences

Variations in practices, beliefs, and values among different societies or communities.

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