Please simplify the expression, I can give brainliest :)

Which of the expressions (on the photo document i inserted) together represent all solutions to the following equation? 8cos(12x)+4=-4 *the answer should be in degrees.* > i would like for someone to explain the process to find the solutions for this.

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.

What are the domain and range of the function f(x)=2^x+1