text: can u solve this math problem? please help? solve 2sinx=1-2cosx in the interval [ 0 , 2pi) please help! working in degrees  use the equivalence sin(x) + cos(x) = sqrt(2) * sin(x + 45)  you have 2 * sin(x) = 1 - 2 * cos(x) rearrange and divide by 2: sin(x) + cos(x) = 1/2 then sqrt(2) * sin(x + 45) = (1/2) and thus sin(x + 45) = (1/2) / sqrt(2)  after that it boils down to calculator bashing  (1/2) / sqrt(2) = 0.3536 x + 45 = 20.71 (degrees) x = 335.7 degrees  i'll leave you to sort out whether there are other solutions.