Question: x2 + 4x - 21 . If a limit does not exist then answer +oo, -oo, or DNE (whichever is correct). Make sure to check


x2 + 4x - 21 . If a limit does not exist then answer +oo, -oo, or DNE (whichever is correct). Make sure to check that L'Hopital's rule applies before using it. Also, whenever you apply L'Hopitals rule, indicate that you are using it. 1. Calculate the indicated limit. lim - 2-+3 x2 - 7x + 12
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