/ ________\ |1 - \/ cos(x) | lim |--------------| x->oo| 2 | \ x /
Limit((1 - sqrt(cos(x)))/x^2, x, oo, dir='-')
/ ________\ |1 - \/ cos(x) | lim |--------------| x->0+| 2 | \ x /
1/4
= 0.25
/ ________\ |1 - \/ cos(x) | lim |--------------| x->0-| 2 | \ x /
1/4
= 0.25
= 0.25