Deriving Double and Half Angles formulas

Опубликовано: 22 Май 2026
на канале: MoofyMath
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In this video I show how the half and double Angle Formulas are derived and formed.

Math help intended for Highschool students.

Deriving Compound Angle Formulas:    • Deriving Compound-Angle Formulas - Grade 1...  
Solving Basic Trig Identities:    • Proving Basic Trig identities - Grade 11/1...  
Solving Trig Identities using compound angle formulas:    • Proving Trig Identities With Compound-Angl...  
Understanding and Simplifying radicals:    • Simplifying Radical Expressions (roots) - ...  

Sin(2x): 00:00-2:23
Cos(2x): 2:24-6:15
Tan(2x): 6:16-6:57
Sin(x/2): 6:58-10:46
Cos(x/2): 10:47-12:23
Tan(x/2): 12:23-15:16

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!