Find the domain of $\"\"$ .

Observe the graph:

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

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

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

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

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