BQ #5: Why Do Sine and Cosine not have Asymptote, but the other four triq graphs do??

Sine and Cosine not have asymptote because it will never be undefined. The triq function of sine is y/r and cosine x/r. Since r=1, sine and cosine will be never undefined.

 As for the other triq functions, it does have an asymptote because the x, y could equal to zero. Therefore, the triq value of these functions will be undefined. Undefined triq functions will always have an asymptote on the graph.