Answer:sec0
Step-by-step explanation:
Answer:
sec θ = -1 θ = π+2nπ
sec θ = 2 θ = π/3+2nπ or 5π/3+2nπ
tan² θ = 1 + sec θ
sec² θ - 1 = 1 + sec θ
sec² θ - sec θ - 2 = 0
(sec θ + 1) (sec θ - 2) = 0
