1. The problem statement, all variables and given/known data These are three separate problems sec θ = 2 cot θ =1 csc θ = 2 2. Relevant equations I'm not sure which of the trigonometric identities to use here. Therefore, I'm not sure which equations are relevant. 3. The attempt at a solution I've never learned how to evaluate these without a calculator. I don't even know where to start. I tried using the 1 + tan2θ = sec2θ. But I couldn't yield many results with this.