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:

Meridians

Pathways in the body along which vital energy is said to flow, integral to traditional Chinese medicine practices.

Traditional Chinese Medicine

A holistic medical system from China, using practices like acupuncture and herbal medicine to treat various conditions.

Channels

Pathways or mediums through which information, substances, or forces are conveyed or transmitted.

Acupuncture

An ancient Chinese form of analgesia that consists of inserting needles into specific points on the skin and continuously stimulating the needles.