math URGENT

Find all values of x such that sin 2x = sin x and 0 x 2π. (List the answers in increasing order.)
x=
x=
x=
x=
x=

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asked by Cassy
  1. sin 2x - sinx = 0 , 0 < x < 2π

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

    for sinx = 0
    x = 0 , π , 1π

    for cosx = 1/2
    x = π/3 or x = 5π/3

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    posted by Reiny

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