BQ#5 - Unit T Concepts 1-3

The reason for sine and cosine not having asymptotes is because r equals 1 that makes them undefined. Sine is y/r=1 and cosine is x/r=1, there needs to be a zero at the denominator to have asymptotes. Unlike tangent(y/x) and secant(r/x) have asymptotes at 90 and 270 degrees because that's where x=0. Cosecant(r/y) and cotangent(x/y) that have asymptotes at 0 and 180 degrees because that's where y=0.