/ 4 \ lim |x + ---------| x->4+| _______| \ \/ 4 + x /
Limit(x + 4/sqrt(4 + x), x, 4)
/ 4 \ lim |x + ---------| x->4+| _______| \ \/ 4 + x /
___ 4 + \/ 2
= 5.41421356237309
/ 4 \ lim |x + ---------| x->4-| _______| \ \/ 4 + x /
___ 4 + \/ 2
= 5.41421356237309
= 5.41421356237309