Trig Functions
posted by Anonymous .
Which of the following lists contains only functions with vertical asymptotes in their graphs?
A. Cosine, sine, tangent, cotangent
B. Tangent, secant, cosecant, cotangent
C. Sine, tangent, secant, cosecant
D. Cosine, sine, secant, cosecant

cosine, sine, vary between 1, 1? So they cannot be in the correct answer.