More Solutions
csc𝜃=−2
Solve over the interval 0≤𝜃<2𝜋 
Solve instead over the interval −2𝜋≤𝜃<0 
Solve instead over the interval 2𝜋≤𝜃<4𝜋 
Solve instead over the interval −2𝜋≤𝜃<4𝜋