2000002601 | math4u.vsb.cz

SubArea:

Powers and roots of complex numbers

Level:

Project ID:

2000002601

Accepted:

0

Clonable:

0

Easy:

1

Consider the equation

x^{4} + 16 = 0

. Which of the given numbers is the solution of this equation?

2 (\cos \frac{π}{4} + i \sin \frac{π}{4})

2 i

- 2 i

2 (\cos π + i \sin π)