Find the Exact Value Of $\sin \frac { \pi } { 8 }$

question 38

Essay

Find the exact value of $\sin \frac { \pi } { 8 }$ .

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Definitions:

Styloid Process

A slender, pointed piece of bone just below the ear, attached to ligaments and muscles associated with the tongue and hyoid bone.

Olecranon Fossa

A deep notch on the posterior side of the humerus bone, into which the olecranon process of the ulna fits when the arm is extended.

Lateral Epicondyle

A bony prominence on the outer side of the elbow, to which forearm muscles are attached.

Deltoid Tuberosity

A roughened area on the middle of the outer surface of the humerus, where the deltoid muscle attaches.