Multiplying and Dividing in Polar Form Summary

Multiplying and Dividing in Polar Form

Summary

complex numbers written in rectangular form can be multiplied out using processes similar to expanding quadratics and rationalising algebraic fractions involving surds.

if the complex number is written in polar form division and multiplication become much easier using two formulae.

Key Skills
  • multiply two or more complex numbers given in polar form
  • divide two complex numbers given in polar form

Vocabulary

polar form, complex numbers, modulus, argument.