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Thread: Simple Calculus Problem

  1. #1
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    Simple Calculus Problem

    Pretty simple problem but I am not sure if the notation in my answer is correct -- So I am just going to post my answer and tell you what I am trying to say with it
    --
    $\displaystyle f(x)=cosx/(1+cosx), x=(x)-[(x)in(Re) | 2(pi)n + (pi), (n)in(SetZ)$


    Trying to say that x belongs to all real numbers excluding $\displaystyle pi $ rad and all of its similar angles.'

    Was unable to figure out how to say some things in you equation maker so clarified below

    in:Belongs to
    pi:3.14159.....
    Re: All Real Numbers
    SetZ:Integer Set
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  2. #2
    MPK
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    Hello,

    $\displaystyle x \in \mathbb{R}- \left \{ x,x=k \pi, k \in \mathbb{Z} \right \}$

    is that what you meant ?
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  3. #3
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    Quote Originally Posted by MPK View Post
    Hello,

    $\displaystyle x \in \mathbb{R}- \left \{ x,x=k \pi, k \in \mathbb{Z} \right \}$

    is that what you meant ?
    Slightly confused about the x,x

    ^^ -- Don't really know the notation that well

    But after looking at yours




    $\displaystyle x \in \mathbb{R}- \left \{ x,x=2 \pi k - \pi, k \in \mathbb{Z} \right \}$


    Because the equation does exist at $\displaystyle 2\pi$ and $\displaystyle 4\pi$ etc.

    Depending on what x,x means I think the above may be correct

    x=all real numbers minus angles $\displaystyle \pi , 3 \pi , 5 \pi , etc$
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  4. #4
    MPK
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    i meant x "\" x it means x such as x = k*...

    it's because of the latex thing..
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