Question 5 (4a) Solve the equation graphically: Cos (20 )- sin (0 )=0, for Os0 s 2x, Use a graphing calculator to graph the given equation on the specified domain. Sketch that graph on the grid below. Also, clearly mark each solution on the graph. (round your answer to the nearest 3 d.p.) [6pts] 4+ Nat 3x 2 b) Write a sinusoidal equation for the following: [4pts] Tools | Comment Share or each of the following graphs