Answer:
\((-\infty,\infty)\)
Step-by-step explanation:
We have been given an inequality \(x^2\geq -4\)
We know that when 'n' is even for \(u^n\geq 0\), then solution is all values of u.
Since x is raised to second power, so it is even.
Therefore, the solution for our given inequality is all values of x that is \((-\infty,\infty)\).
