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Math Help - application of trigonometry

  1. #1
    Junior Member lanzailan's Avatar
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    Mar 2009
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    27

    application of trigonometry

    hello people..
    i've got 2 questions which i'm not sure how to solve..
    i was wondering if anybody could help me out for question (b) and (d).
    for question (b), is it 0\leq \theta <\frac{\pi}{2}?
    and for (d) h is infinity?

    thanks in advance

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  2. #2
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    yes and yes
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