Which trigonometric functions have asymptotes? (select all that apply.) ?

The trigonometric functions that have asymptotes are:

1. Tangent function

f (x) = tan (x)

2. cotangent function

f (x) = cot (x)

3. secant function

f (x) = sec (x)

4. cosecant function

f (x) = csc (x)