Complex Numbers: Polar and Exponential Form — Engineering Board Exam Practice Questions

6 free engineering board exam reviewer questions on Complex Numbers: Polar and Exponential Form (Advanced Engineering Mathematics), each with the correct answer and a worked solution.

1. Write 4+4i in polar form.
2. Convert 10 60° to rectangular form.
3. Find the polar form of -3+3i.
4. Multiply using polar form: (2, cis,30°)(3, cis,60°)
5. Divide using polar form: 12, cis,80°4, cis,20°
6. Use De Moivre's Theorem to find (2, cis,30°)3.