Question

Find the principal solution and general solutions of the following:

(i) sin θ = -1/√2

(ii) cot θ = √3

(iii) tan θ = -1/√3

Answer 1

(i) sin θ = -1/√2 < 0, the principal value lies in IV quadrant 

(ii) cot θ = √3

(iii) tan θ = -1/√3

Here