甘 2. 13 marks] Consider the graph of the function f(x) = 2 sin x , 0 < x < 20 . The graph of f intersects the line y = -1 exactly twice, at point A and point B. This is shown in the following diagram. frequency Consider the graph of g (x) = 2 sin px, x y=-1 B 0 < x < 23, where p > 0. Find the greatest value of p such that the graph of g does not intersect the line y = -1. px 7 = 21 2 sinx=-1 sinx= -/ [Total marks: 3 26. p=3 [ pox to the 3. [8 marks] X=30° hich fl 2.62 +1.