Find the Exact Value Of $\sin \left( \frac { 7 \pi } { 4 } \right)$

question 62

Essay

Find the exact value of $\sin \left( \frac { 7 \pi } { 4 } \right)$ and $\cos \left( \frac { 7 \pi } { 4 } \right)$ .

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Definitions:

Population Growth

The growth in a population's size, determined by variables such as rates of births and deaths, along with immigration and emigration levels.

Demographic Trends

Observable patterns in population dynamics over time, such as changes in birth rates, death rates, migration, and aging.

Collective Behavior

Actions and reactions of a group of people in situations that do not conform to societal norms, often in response to an event that precipitates collective activity.

Social Movement

A collective effort by a group of people to advocate for or resist change in society, often aimed at social, political, or environmental issues.