Which of the following are true? Select all that apply.

Question

A. tan(theta)= cos(theta)/sin(theta)
B. cot(theta)= cos(theta)/sin(theta)
C. sec(theta)= 1/sin(theta)
D. csc(theta)= 1/cos(theta)
E. sec(theta)= tan(theta)/sin(theta)

Answer 1

A. tan(theta)= cos(theta)/sin(theta)
C. sec(theta)= 1/sin(theta)