2 pls do it completely and correctly asap

Activity 1 1. Sketch the graph of one cycle of y = = sin 3x. 2. In the same Cartesian plane, sketch one cycle of the graphs of y = 3cosx and y = 3cos(x+75)-1. Activity 2 (1) Sketch the graph of y = - secr on the interval [0, 27]. N 0 17/2 3TT/2 2TT -1 -2 Activity 3 (1) Sketch the graph of y = cot(-x) on the interval [-7, 7]. N TT/2 0 TT/2 -1 -2 -31