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March 27, 2017

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Evaluate the following limit:

lim x --> negative infinity

9 square root over x^2-1
divided by
x + 4

  • calculus - ,

    I assume you want
    Lim 9 sqrt(x^2-1)/(x+4)
    x-> -inf

    When x becomes very large and negative, the numerator approaches 9|x| (assuming you take only the positive square root) and the denominator approaches x. The fraction therefore approaches -9.

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