Find the solution set of 3x + 11 < 50 using inverse operations and properties of inequality.

What is the range? can’t seem to find it out

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.

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).