Q.
A. θ = nπ ± π/3, n ∈ z
B. θ = 2nπ ± π/4, n ∈ z
C. θ = nπ ± π/4, n ∈ z
D. θ = 2nπ ± π/3, n ∈ z
E. None of the above
Correct choice: C
Explanation: