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Math Help - Solving trig equation...

  1. #1
    Newbie
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    Solving trig equation...

    I am trying to do this problem and I only get so far.

    2 sin3x+1=0

    Thanks in advance.
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  2. #2
    Senior Member
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    Thanks
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    break the problem down

    So what z solves?

    <br />
2 z +1=0<br />

    Then what y solves
    <br />
sin y = z<br />

    Then what x solves
    <br />
3x = y<br />
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  3. #3
    Junior Member mrmohamed's Avatar
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    Quote Originally Posted by Godzilla View Post
    I am trying to do this problem and I only get so far.

    2 sin3x+1=0

    Thanks in advance.
    hi all
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  4. #4
    Super Member
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    Africa
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    Smile


    Put sin(3x)=y
    and solve for y,the equation 2y+1=0.
    Remember, sin(-\frac{\pi }{6})=-\frac{1}{2}.
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