J Jane New member Feb 22, 2010 #1 What is the limit of (4-sqrt(12+x)) / (x-4) as x approaches 4? you cant just sub in 4 so i think you have to rationalize the numerator and simplify first. any help would be appreciated
What is the limit of (4-sqrt(12+x)) / (x-4) as x approaches 4? you cant just sub in 4 so i think you have to rationalize the numerator and simplify first. any help would be appreciated