Results 1 to 3 of 3

Math Help - trig help?

  1. #1
    Newbie
    Joined
    Jul 2014
    From
    NYC
    Posts
    1

    trig help?

    i have to use either sin, cosine, or tangent?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor
    Joined
    Nov 2013
    From
    California
    Posts
    2,774
    Thanks
    1140

    Re: trig help?

    $\sin(53deg)=\dfrac x {15}$
    Follow Math Help Forum on Facebook and Google+

  3. #3
    MHF Contributor

    Joined
    Apr 2005
    Posts
    16,237
    Thanks
    1795

    Re: trig help?

    You need to learn by heart:

    \sin(\theta) is "opposite leg divided by hypotenuse".
    \cos(\theta) is "near leg divided by hypotenuse".
    \tan(\theta) is "opposite leg divided by near leg".

    In your diagram the hypotenuse has length 15 and the side opposite the 53 degree angle has length x.
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Compute Trig Function Values, Solve Trig Equation
    Posted in the Trigonometry Forum
    Replies: 1
    Last Post: September 8th 2011, 08:00 PM
  2. Replies: 7
    Last Post: April 15th 2010, 09:12 PM
  3. Replies: 6
    Last Post: November 20th 2009, 05:27 PM
  4. Trig Equations with Multiple Trig Functions cont.
    Posted in the Trigonometry Forum
    Replies: 4
    Last Post: April 7th 2008, 06:50 PM
  5. Replies: 2
    Last Post: April 21st 2006, 04:04 PM

Search Tags


/mathhelpforum @mathhelpforum