Level:
Project ID:
9000034304
Accepted:
1
Clonable:
0
Easy:
1
Find the solution set of the following equation in the set of complex numbers.
\[
x^{4} - 1 = 0
\]
\(\{1;\ -1;\ \mathrm{i};\ -\mathrm{i}\}\)
\(\{1 -\mathrm{i};\ -1 -\mathrm{i}\}\)
\(\{1 + \mathrm{i};\ -1 + \mathrm{i}\}\)
\(\{1 + \mathrm{i};\ 1 -\mathrm{i};\ -1 + \mathrm{i};\ -1 -\mathrm{i}\}\)