How is breaking apart 16 times 34 like solving four simpler problems

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.

Which of the following circles have their centers in the third quadrant? check all that apply.

Which term below correctly completes the following sentence? if a function has a vertical asymptote at a certain x value, then the function is what at that value