Once again I am very greatful for you can help.

1 ) Find the exact value of 17pie / 12

2) Find the solutions of 2-sin²x = 2cos²(x/2) that are on the interval [0, 2pie)

For the first, I'm pretty sure I know what to do but I'm simply thinking about it too hard... and the second, im thinking about somehow using the half angle formulas or something like that.