Question

solve:

Sin2x=Sinx

Answer 1

sin 2x = sinx

2sinxcosx-sinx = 0
sinx(2cosx - 1) = 0
sinx = 0 or cosx = 1/2

in degrees,
x = 0, 180, 360 or x = 60 , 300 , for 0 ≤ x ≤ 360°

in radians,
x = 0, π, 2π or x = π/3, 5π/3