lesson
Linking Exponential Form to Compound Angles
Use the exponential form to derive compound angle formulae

Use the exponential form to derive compound angle formulae
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11th Grade · Math · UK A-Level
4 lessons
Understand the derivation of Euler's identity and use exponential form to derive trigonometric identities and compound angle formulae.
[Multiply and divide complex numbers in modulus-argument form (knowledge of radians and compound angle formulae is assumed)]
Know and use the definition eiθ=cosθ+isinθ and the form z =reiθ