Use a Half-Angle Formula to Find the Exact Value Of \sin

question 48

Essay

Use a half-angle formula to find the exact value of $\sin \frac { \pi } { 8 }$ .

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Definitions:

Swimming Speed

The rate at which an individual or object moves through water.

Cardiovascular System

The system in the body that circulates blood and lymph through the heart, arteries, veins, and capillaries, delivering oxygen and nutrients to organs and tissues and carrying away waste products.

Red Blood Cells

The cells in the blood that carry oxygen to the body's tissues and remove carbon dioxide.

Arteries

Blood vessels that carry oxygen-rich blood away from the heart to the body's tissues and organs.