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Math Help - Sketching A Graph

  1. October 9th 2011, 09:40 AM #1
    Manni
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    Sketching A Graph

    Hey guys, how would I sketch a graph of y = arccos(cos x) for all values of x? I begin defining the domain and range for cosx, but where do I go from there?
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  2. October 9th 2011, 09:49 AM #2
    e^(i*pi)
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    Re: Sketching A Graph

    Quote Originally Posted by Manni View Post
    Hey guys, how would I sketch a graph of y = arccos(cos x) for all values of x? I begin defining the domain and range for cosx, but where do I go from there?
    For values in the domain: \arccos(\cos(x)) = x
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  3. October 9th 2011, 09:53 AM #3
    Manni
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    Re: Sketching A Graph

    Oh ok. Just doubling checking, but would there be any restrictions to the domain and range of this graph?
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  4. October 9th 2011, 11:50 AM #4
    skeeter
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    Re: Sketching A Graph

    Quote Originally Posted by Manni View Post
    Oh ok. Just doubling checking, but would there be any restrictions to the domain and range of this graph?
    y = \arccos(\cos{x})

    -1 \le \cos{x} \le 1

    domain ... x \in \mathbb{R}

    range ... 0 \le y \le \pi
    Attached Thumbnails Attached Thumbnails Sketching A Graph-arccos1.jpg  
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