Find the counter example for the statement below At least one diagonal in a quadrilateral cuts the area in half

Bradley hikes 12 miles in 3 hours. in relation to bradley’s hike, which statement describes the expression

Ineed in figuring out this problem.

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.