Level:
Project ID:
2010009502
Source Problem:
Accepted:
0
Clonable:
1
Easy:
0
Assuming \(x\in \mathbb{R}\), find the solution set of the following equation.
\[
x^{4} - 81 = 0
\]
\(\left \{-3,3\right \}\)
\(\left \{-\sqrt{3},\sqrt{3}\right \}\)
\(\left \{-9,9\right \}\)
\(\left \{-3,-\sqrt{3},\sqrt{3},3\right \}\)