Find the domain of $\"\"$ .

Observe the graph:

The domain of the funcction $\"\"$ is $\"\"$ .

The range of th function $\"\"$ that corresponds to this domain is $\"\"$ .

The domain of the function $\"\"$ that yields the range of $\"\"$ is $\"\"$ or $\"\"$ .

Therefore, the domain of composite function $\"\"$ is $\"\"$ .

Domain of composite function $\"\"$ is $\"\"$ .