3. Find all integers that belong to the domain of the function $\arcsin \ln \frac{|x|+2}{2}+\log _{\cos x} 2$. List the answers in any order, separated by a semicolon.

Examples of answer notation:

1

$0 ; 1$
Answer: $-1 ; 1\|-1,1\| 1 ;-1 \| 1,-1$