47:37:32 if 2:52 Let f 2: : ( ) {2a.- 1 if a: > 2 Calculate the following limits. Enter "DNE" if the limit does not exist. 53927 M) : l m rm: l:l 1% rm : :J -3 - 2+5 if a - 4 Calculate the following limits. Enter "DNE" if the limit does not exist. lim f (ac) = lim f (ac) = x- -4+ lim f (a) = x- -48 if x - 4 Calculate the following limits. Enter "DNE" if the limit does not exist. lim f (a) = x--4- lim f (20) = x- -4+ lim f ( x) = x- -4