Because the cosine function repeats its values every 2π units, we get all solutions of the equation by adding integer multiplies of 2π to the solutions found in the previous steps. thus, if we let k be any integer, we add 2kπ to each of the three solutions and enter them as a comma-separated list. (enter your answers as a comma-separated list.)

Kevin has a spinner that has 10 equal sections and 2 sections of each color—red, blue, green, yellow, and purple. kevin spins the spinner 180 times. kevin determines about how many times the spinner will land on red or green, and his work is shown below. -kevin has the formula reversed; it should be the total number of sections over the number of red or green sections. -kevin should have used a 4 in the numerator because there are 2 red sections and 2 green sections. -kevin should multiply by the number of sections in the spinner rather than the total number of spins. -kevin calculated the prediction correctly and did not make any mistakes.