This trigonometry video tutorial explains how to solve right triangles using the pythagorean theorem and SOHCAHTOA. 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 _____________________________ 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 Pythagorean Identities: https://www.youtube.com/watch?v=TpADRvW8zm8 The Pythagorean Theorem: https://www.youtube.com/watch?v=pbf4lcJhIfI Trig Functions - Periodic Properties: https://www.youtube.com/watch?v=8Z60_yXX4xA ________________________________ 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/MathScienceTutor/collections