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Math Help - Pre-Calc Even/Odd/Niether function?

  1. #1
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    Pre-Calc Even/Odd/Niether function?

    Determine if the function is even, odd, or niether...

    1-x^2 / 1 + x^2


    I have to show my work, too...

    thanks.
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  2. #2
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    Given f(x) = \frac{{1 - x^2 }}{{1 + x^2 }} if f(x) = f( - x) then the function is even.
    Is it?
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  3. #3
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    I guess that's the right answer, but how do you KNOW if a function is odd, even, or neither? What do you use?

    thanks.
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  4. #4
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    Quote Originally Posted by falloutatthedisco View Post
    how do you KNOW if a function is odd, even, or neither? What do you use?
    \begin{array}{l}<br />
 f(x) = f( - x),\quad \mbox{even} \\ <br />
 f(x) =  - f( - x),\quad \mbox{odd} \\ <br />
 \mbox{otherwise neither} \\ <br />
 \end{array}
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  5. #5
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    great, thank you SO much for your help! I understand now.
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