/ _______ 2 \ lim |\/ 4 + x - --------------| x->0+| _______| \ -1 + \/ 1 - x /
Limit(sqrt(4 + x) - 2/(-1 + sqrt(1 - x)), x, 0)
/ _______ 2 \ lim |\/ 4 + x - --------------| x->0+| _______| \ -1 + \/ 1 - x /
oo
= 604.999993810277
/ _______ 2 \ lim |\/ 4 + x - --------------| x->0-| _______| \ -1 + \/ 1 - x /
-oo
= -603.000006145474
= -603.000006145474