Answer:


Domain: All real numbers
![Range = [-1,1]](https://img.qammunity.org/2022/formulas/mathematics/college/irezhaeavssq8ezc7qrp5663n3rl2nec64.png)
Explanation:
Given
The attached graph
Solving (a): f(0)
On the attached graph
when

So:

Solving (b): f(pi)
On the attached graph
when

So:

Solving (c): Domain
There is no restriction on x.
Hence, the domain is the set of all real numbers
Solving (d): Range
In the attached graph


So, the range is:
![Range = [-1,1]](https://img.qammunity.org/2022/formulas/mathematics/college/irezhaeavssq8ezc7qrp5663n3rl2nec64.png)