1. The problem statement, all variables and given/known data Prove that this is an identity. 1 + cos² x / sin² x = 2csc² - 1 2. Relevant equations cos²x + sin²x = 1 (manipulative equation) tan²x = sec² - 1 cot²x = csc²x - 1 etc.. 3. The attempt at a solution I attempted this equation more than 10+ times. Each time, I find a way but I get half way there and it doesn't work out.