Question

Using De Moivre's theorem, what is $z^{3}$ in polar form?

$$z = 1\left(\cos 90^\circ + i\sin 90^\circ\right)$$

Accepted Answer

$$1\left(\cos 270^\circ + i\sin 270^\circ\right)$$

Answer

$$3\left(\cos 270^\circ + i\sin 270^\circ\right)$$

Answer

$$1\left(\cos 90^\circ + i\sin 90^\circ\right)$$

Answer

$$1\left(\cos 93^\circ + i\sin 93^\circ\right)$$

Practice: Complex De Moivre - Power to Polar