Paper 1 · Complex Numbers
Lesson 15 of 17
Complex Numbers 15: Polar form, De Moivres theorem and fraction in the power
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- Solve equations like Z² = c and Z³ = c by extracting every root with De Moivre
- Find the cube roots of unity 1, ω, ω² and verify 1 + ω + ω² = 0
- Handle general fractional powers Z^(p/q) — the denominator q counts the answers
- Round answers to the required decimal places when the angles are non-standard
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