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Math Help - question on trigonometry

  1. #1
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    question on trigonometry

    Hi all

    question on triangometry .


    question on trigonometry-zti42301.jpgAttachment 29044
    I know solve this quetion put are we saying :
    tan = 6/6.7 = 0.8955
    or tan =6/6.7 =0.0156
    I don't n did we take tan or direct divide 6/6.7 = 0.8955
    I want your help please .
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  2. #2
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    Quote Originally Posted by r-soy View Post
    I know solve this quetion put are we saying :
    tan = 6/6.7 = 0.8955
    or tan =6/6.7 =0.0156
    Fisrtly, you cannot have tan by itself. You have to have tan of something.

    You know that the tangent rule for a right angle triangle is \tan{\theta} = \frac{opposite}{adjacent}

    That means \theta = \tan^{-1}\left(\frac{opposite}{adjacent}\right)

    Do you understand?
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  3. #3
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    thanks a lot
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