csc^{2}(x/2)=2sec(x) Please help me solve for x. 5/13/2013 | Kira from Boone, NC | 1 Answer | 0 Votes Mark favorite Subscribe Comment
Take reciprocals, sin^{2}(x/2) = cos(x)/2 => 2sin^{2}(x/2) = cos(x) => 1-cos(x) = cos(x) => cos(x) = 1/2 => x = pi/3, 5pi/3 on [0, 2pi). 5/13/2013 | Robert J. Best answer Comment