Recall sum law which states that if the limits lim f x and lim g x exist then the following holds x 00 x40 lim f x g x g x lim f x lim g x 818 818 The difference law is similar to the above but deals with a difference of functions as opposed to a sum f x g x lim f x lim g x x 0 lim 5 X18 lim 818 Applying these limit laws gives us the following Jim 8 37 2 lim 8 lim X 8 X18 lim 5 lim 818 lim X X X