Paper 1 · Complex Numbers
⏱ Tested in 1 exam question since 2017
Lesson 11 of 17
Complex Numbers 11 – Rules for Polar Form
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- Multiply complex numbers in polar form: multiply the moduli, add the arguments
- Divide in polar form: divide the moduli, subtract the arguments
- Find a reciprocal with 1/z = (1/R)(cos A − i sin A)
- State De Moivre's theorem zⁿ = Rⁿ(cos nθ + i sin nθ) from page 20 of the tables
Most recent exam questions
- 2017 P1 Q2(b)
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