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Math Help - Cot(x)

  1. #1
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    Cot(x)

    Hi,

    I need to determine the value of cot(x) at pi/2... but cot(x) is equal to 1/tan(x) and at tan(pi/2) the function is undefined?

    I'm confused, can anyone explain how determine the value of cot(pi/2)... Thanks
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  2. #2
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    Re: Cot(x)

    Quote Originally Posted by sjmiller View Post
    Hi,

    I need to determine the value of cot(x) at pi/2... but cot(x) is equal to 1/tan(x) and at tan(pi/2) the function is undefined?

    I'm confused, can anyone explain how determine the value of cot(pi/2)... Thanks
    \cot\left(\frac{\pi}{2}\right) = \frac{\cos\left(\frac{\pi}{2}\right)}{\sin \left(\frac{\pi}{2}\right)} = \frac{0}{1} = 0
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