/ x \ lim |--------------| x->0+| ____________| \\/ 1 - cos(x) /
Limit(x/sqrt(1 - cos(x)), x, 0)
/ x \ lim |--------------| x->0+| ____________| \\/ 1 - cos(x) /
___ \/ 2
= 1.4142135623731
/ x \ lim |--------------| x->0-| ____________| \\/ 1 - cos(x) /
___ -\/ 2
= -1.4142135623731
= -1.4142135623731