🔍
🏠
Khan Academy (English - US curriculum)
🎲
Khan Academy (English - US curriculum)
Math by grade
Eureka Math/EngageNY
Precalculus (Eureka Math/EngageNY)
Module 4: Trigonometry
Topic B: Trigonometry and triangles
Proof of the law of sines
Proof of the law of sines
Sal gives a simple proof of the Law of sines.
License: CC BY-NC-SA by Khan Academy