The Norbert H and Jason M Kluga science, math and engineering blog. Dedicated to the science discussions I would have with my grandfather Norbert and great uncle John and to the artistic influence of my grandmother Lorraine. And most of all, to my late mother who grounded me and nurtured my passion for science, engineering and music.
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limit of (x^2-1)/(x^2-x) as x->1
Pretty straightforward. Just take the derivative of the numerator and denominator (separately, this isn't the quotient rule!) once and the limit is clearly 2.
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