Show That the Point $( 1 / \sqrt { 5 } , - 2 / \sqrt { 5 } )$

question 106

Short Answer

Show that the point $( 1 / \sqrt { 5 } , - 2 / \sqrt { 5 } )$ is on the unit circle.

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Definitions:

Lymph Filter

A term not commonly used in medical literature but may refer to lymph nodes which filter harmful substances from the lymph fluid.

Lymphatic System

A vital part of the immune system, consisting of organs, ducts, and nodes that transport lymph, a fluid containing infection-fighting white blood cells, throughout the body.

Lymphocytes

A type of white blood cell involved in the immune response, playing a role in protecting the body against infections and diseases.

Macrophages

A type of white blood cell that engulfs and digests cellular debris, foreign substances, microbes, and cancer cells in a process called phagocytosis.