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Math Help - construct a function

  1. #1
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    construct a function

    construct a function f(x) such that lim as x appr 4 =6 and f(x) is not defined.

    I know there are multiple answers, however I would like to see what people come up with.

    thanks.
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  2. #2
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    Quote Originally Posted by phalange View Post
    construct a function f(x) such that lim as x appr 4 =6 and f(x) is not defined.

    I know there are multiple answers, however I would like to see what people come up with.

    thanks.
    very basic ...

    \lim_{x \to 4} \frac{x^2-2x-8}{x-4}
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