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27 April, 01:44

Sin (2x) = sin (4x)

Solve

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Answers (1)
  1. 27 April, 02:07
    0
    Sin (2x) - sin (4x) = 0

    -2cos (3x) sin (x) = 0

    x=pi/6+2kpi/3

    x=pi/2+2kpi/3, k=no solution

    x=2kpi

    x=pi+2kpi
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