Ok now this question i got wrong too but i got 2 of the answers correct. ok question is solve for x the following equation. 2sin squared x= 1-cosx Ok this is what i did. 2sin Squared x- sinx= 0 Let u= sinx 2uSquared - u=0 u(2u-1)=0 u=0, u=one half. sinx=0, sinx=1/2 Now x= o and 2pie. And for the other part it get x=pie/6 and 5pie/6. Now i checked my answers with the sheet as it says answers and it says the answers are 0, 2pie, 2pie/3, 4pie/3. Now 2pie/3 is square root of 3/2 and 4pie/3 is -square root3/2. What did i do wrong?