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The equation z^n=a+ib \quad has n roots. We can use De Moivre's theorem to find them.

De Moivre's Theorem: (\cos \theta + i \sin \theta)^n = \cos n\theta + i \sin n\theta

De Moivre's Theorem: (\cos \theta + i \sin \theta)^n = \cos n\theta + i \sin n\theta

## Software/Applets used on this page

## Glossary

### equation

A statement that two mathematical expressions are equal.

### union

The union of two sets A and B is the set containing all the elements of A and B.