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First time poster, I'm about to enter first year calc and thought that I could get ahead of the curve by checking out some questions beforehand. This showed up on one of the university calculus exams but I couldn't figure out how to do it. I tried to finding a common denominator but then was unable to see how to go from there. Attempted l'hopitals way and was once again confounded by how to proceed. Would appreciate hints.

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# B How do you find the limit of this?

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