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Homework Help: Trigonometry basis

  1. Apr 27, 2008 #1
    1. The problem statement, all variables and given/known data

    I have one trigonometry circular, like on this "[PLAIN [Broken] 00211.jpg"]picture.[/URL]

    On the picture there are pi/2 and -pi/2.

    Also I have another picture with inequality which "[PLAIN [Broken] 00211.jpg"]I need to solve.[/URL]

    2. Relevant equations

    3. The attempt at a solution



    I have another "[URL [Broken] 0021111.JPG"]picture.[/URL]

    So the results for tg are:


    so the results for x are


    The question is: will I get same if I use [tex]\frac{3\pi}{2}[/tex] instead of [tex]\frac{\-pi}{2}[/tex]
    Last edited by a moderator: May 3, 2017
  2. jcsd
  3. Apr 28, 2008 #2


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    Hi Physicsissuef! :smile:

    more information needed …

    what is x? is it an angle (if it isn't, how can you add it to π/2?)

    what are the two horizontal lines supposed to be?

    what are you being asked to solve? :confused:
  4. Apr 28, 2008 #3
    x is angle. I asked why I don't get same when I use [tex]\frac{3\pi}{2}[/tex] instead of [tex]\frac{-\pi}{2}[/tex]???
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