/ ________ ________\ | / 2 / 2 | lim \\/ 1 + x + \/ 1 - x / x->0+
Limit(sqrt(1 + x^2) + sqrt(1 - x^2), x, 0)
/ ________ ________\ | / 2 / 2 | lim \\/ 1 + x + \/ 1 - x / x->0+
2
= 2
/ ________ ________\ | / 2 / 2 | lim \\/ 1 + x + \/ 1 - x / x->0-
2
= 2
= 2