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Math Help - Help with limit please

  1. #1
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    Help with limit please

    Hi all, just signed up, wondering if anyone could look at a problem on a practice midterm of mine and explain why the limit is 1 and not 0

    the midterm is here http://www.math.washington.edu/~m124...1_pevtsova.pdf

    edit, needed help with 1 b
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  2. #2
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    Factor,
    \lim_{x\to 0} \frac{x^2-2x+1}{x-1}
    Factor,
    \lim_{x\to 0}\frac{(x-1)(x-1)}{x-1}
    Thus,
    \lim_{x\to 0}(x-1)=-1
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  3. #3
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    thanks, but doesn't the problem read x --> 1? in that case you'd do 1-1 meaning the limit would be 0?
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  4. #4
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    Quote Originally Posted by bjorgen View Post
    thanks, but doesn't the problem read x --> 1? in that case you'd do 1-1 meaning the limit would be 0?
    Yes
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  5. #5
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    thanks, but the answer page says that it's one, must be an error?
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