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Math Help - Help on an Exercise in Right Triangle Trig

  1. #1
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    Help on an Exercise in Right Triangle Trig

    The exercise asks me to construct an appropriate triangle to complete the table. ( 0deg \leq \theta \leq 90deg, 0 \leq \theta \leq \frac{\pi}{2})
    Function \theta(deg) \theta(rad) Function Value
    sec \frac{\pi}{4}

    I'm just drawing an absolute blank on how I would do this even though I feel it shouldn't be that hard. I think I'm suffering from information overload a little.
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  2. #2
    Senior Member MacstersUndead's Avatar
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    Re: Help on an Exercise in Right Triangle Trig

    Note that sec(x) = 1/cos(x), and that pi = 180 degrees.

    Can you finish?
    Thanks from fogownz
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  3. #3
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    Re: Help on an Exercise in Right Triangle Trig

    Ok, I got it. Thank you. I don't fully understand why the book suggested this particular example - I'm sure after a while I will better see how this all fits together, but it had just walked me through an example where I was using trig functions to find lengths of the sides of triangles, and here I'm using them like I was with the unit circle in the previous section.
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