I found the exact value of sin 1 degree (from sin 3 degrees) | Inspired by @blackpenredpen

This video shows how to express sin 1° in terms of square root, cube root and complex numbers. Mathematicians have always been curious to figure out the exact values of trigonometric ratios. Apart from the well-known angles, it seems that very little effort is made on sin 1°, which is extremely fundamental as all other angles are based on 1 degree! Equipped with 2 powerful tools from ‪@blackpenredpen‬ , this channel managed to develop new insights into sin 1° and completed the ultimate goal of exact value! Please sit back and enjoy! ‪@blackpenredpen‬ videos:    • exact value of sin(3 degrees)      • exact value of sin(10 degrees)   Chapters: 00:00 A peek of the exact value 00:15 Thanks to ‪@blackpenredpen‬ ! 00:36 An Overview 01:09 Why sin 1°? 03:07 Preparation 04:28 Simplify sin 3° 09:16 Value of cos 3° 09:50 Which of 3 roots is sin 1°? 11:14 Bingo! Check out other interesting Math videos in the following playlists: Algebra:    • Algebra   Geometry:    • Geometry   Trigonometry:    • Trigonometry   Calculus:    • Calculus   Number Theory:    • Number Theory   30-day CHALLENGE of Integration by Parts:    • 30-day CHALLENGE of Integration by Parts