Level:
Project ID:
2010009506
Source Problem:
Accepted:
0
Clonable:
1
Easy:
1
Find the solution set of the following inequality.
\[
x^{4} +16 \leq 0
\]
\( \emptyset \)
\(\{ -2;2\}\)
\( [-2;2 ] \)
\((-\infty ;-2] \cup [ 2;\infty )\)
\(\mathbb{R}\)