Use the Information Given About the Angle $$\theta , 0 \leq \theta \leq 2 \pi$$

question 318

Multiple Choice

Use the information given about the angle $$\theta , 0 \leq \theta \leq 2 \pi$$ , to find the exact value of the indicated trigonometric function.
- $\cos \theta = - \frac { 5 } { 7 } , \quad \csc \theta < 0 \quad$ Find $\cos ( 2 \theta )$

• A) \(- \frac { 1 } { 49 }\)
• B) \(\frac { 1 } { 49 }\)
• C) \(\frac { 20 \sqrt { 6 } } { 49 }\)
• D) \(\frac { - 20 \sqrt { 6 } } { 49 }\)

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Definitions:

Stratification Theories

Theories that emphasize that social forces—particularly those related to a person’s social stratum or social category—limit individual choices, and affect a person’s ability to function in late adulthood because past stratification continues to limit life in various ways.

Organize

The act of arranging or structuring things in a systematic way for efficiency or order.

Socio-Emotional Selectivity Theory

The theory that older people prioritize regulation of their own emotions and seek familiar social contacts who reinforce generativity, pride, and joy.

Generativity

A concern for establishing and guiding the next generation, typically observed during middle adulthood.