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21 October, 13:48

Sin (2x) - 3cos x = 0

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Answers (2)
  1. 21 October, 14:44
    0
    Answer:sin (inverse) (3/2)

    Step-by-step explanation:

    sin (2x) - 3cosx=0 sin2x=2sinxcosx

    2sinxcosx-3cosx=0

    2sinxcosx=3cosx

    Divide both sides by cosx

    2sinxcosx ➗ cosx = 3cosx ➗ cosx

    2sinx=3

    Divide both sides by 2

    2sinx ➗ 2=3 ➗ 2

    sinx=3/2

    x=sin (inverse) (3/2)
  2. 21 October, 17:26
    0
    2π3, (4π3)
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