Pythagorean Identities - Examples & Practice Problems, Trigonometry

This trigonometry video tutorial provides a basic introduction into the pythagorean identities of trigonometric functions. it provides plenty of examples and practice problems of evaluating cosine given the value of sine.

Trigonometry - Basic Introduction:
https://www.youtube.com/watch?v=g8VCHoSk5_o

The Unit Circle:
https://www.youtube.com/watch?v=57VrEiEPD1I

How To Remember The Unit Circle Fast:
https://www.youtube.com/watch?v=gdJq1QunN-o

Reference Angles:
https://www.youtube.com/watch?v=E-xFXpVo14o

The Six Trigonometric Functions:
https://www.youtube.com/watch?v=WvoFgL4P_rw

How To Solve Right Triangles:
https://www.youtube.com/watch?v=i3bjEOA5_zc

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Reciprocal Identities:
https://www.youtube.com/watch?v=UeuuFqbTYgA

Quotient Identities:
https://www.youtube.com/watch?v=7PVKbyLFY5U

Even and Odd Trigonometric Identities:
https://www.youtube.com/watch?v=5p8hokJ3Cqo

The Pythagorean Theorem:
https://www.youtube.com/watch?v=pbf4lcJhIfI

Trig Functions - Periodic Properties:
https://www.youtube.com/watch?v=8Z60_yXX4xA

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The Exact Value of Trig Functions:
https://www.youtube.com/watch?v=bTdjcvm6pPo

Special Right Triangles - 30 60 90:
https://www.youtube.com/watch?v=p70UBGCHZrQ

Special Patterns - Pythagorean Theorem:
https://www.youtube.com/watch?v=MeBcJPdjeI4

Cofunction Identities:
https://www.youtube.com/watch?v=35fxto48HZY

Final Exams and Video Playlists:
https://www.video-tutor.net/

Full-Length Videos and Worksheets:
https://www.patreon.com/MathSc....ienceTutor/collectio