Use a graphing utility to complete the table and graph the functions in the same viewing window Use both the table and the graph as evidence that yyz Round your answers to four decimal places Y cos x sin x tan x y2 sec x X 4 3 Y Y2 Verify the identity algebraically 4 8 Y cos x sin x tan x cos x cos x 1 cos x cos x X 5 3 X 5 8 6 3 6 8 7 3