4. Complex number


COMPLEX NUMBERS 
Complex numbers and their operations 
  • Define complex numbers 
  •  Represent complex numbers algebraically 
  • Calculate modulus and argument of a complex number 
  • Find the complex conjugate of a complex number 
  • Perform operations on complex numbers 
  • Solve equations with complex number solutions 



Polar form of complex number 
  • Write a complex number in a polar form represent complex number in polar form on the argand diagram 
  • Describe loci of the complex number expression 
De moivre’s theorem 
  • State and prove DeMoivre theorem 
  • Apply the theorem to find nth roots of a complex number 
  • Prove identities and simplify expression using the theorem 
Euler’s formula 
  • Deduce Euler's formula 
  • Apply the formula to prove identities , simplify expression