In the Problem, T Is a Real Number and P $\left( - \frac { \sqrt { 39 } } { 8 } , \frac { 5 } { 8 } \right) \quad$

question 258

Multiple Choice

In the problem, t is a real number and P = (x, y) is the point on the unit circle that corresponds to t. Find the exact value of
the indicated trigonometric function of t.
- $\left( - \frac { \sqrt { 39 } } { 8 } , \frac { 5 } { 8 } \right) \quad$ Find $\cos t$

• A) \(- \frac { \sqrt { 39 } } { 5 }\)
• B) \(\frac { 5 } { 8 }\)
• C) \(- \frac { 8 \sqrt { 39 } } { 39 }\)
• D) \(- \frac { \sqrt { 39 } } { 8 }\)

Familiarize with the use of social computing for social media management by businesses.

Understand the practice and benefits of analyzing social media data to improve customer experience and business operations.

Understand the role of group buying and collaborative consumption in e-commerce.

Recognize the use of social media in emergency response and disaster management.

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