In this video I show how the Compound Angle Formulas are derived and created. I apologize in advance for the extra cuts in this video.
Understanding co-related angles: • Understanding Co-Related Angles - Grade 12...
Solving Basic Trig Identities: • Proving Basic Trig identities - Grade 11/1...
Solving Trig Identities using compound angle formulas: • Proving Trig Identities With Compound-Angl...
Cos(a-b): 00:00-13:55
Cos(a+b): 13:56-16:15
Sin(a+b): 16:16-20:14
Sin(a-b): 20:15-21:05
Tan(a+b): 21:06-25:54
Tan(a-b): 25:55-26:58
Hope you guys enjoyed. Leave a comment if you would like me to make a video on a specific math subject.
Please share if this video helped!