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Mathematics 12 Online
OpenStudy (anonymous):

lim x->4 = (x^2 - x + 20)/(x - 4)

OpenStudy (anonymous):

it doesn't exist. try graphing it and you'll see that as x approaches from the left side, it doesn't meet where x approaches from the right side.

OpenStudy (anonymous):

7 But, you can use l'Hopital's rule

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