/ 1 1 \ lim |----- - ------| x->1+|1 - x 3| \ 1 - x /
Limit(1/(1 - x) - 1/(1 - x^3), x, 1)
/ 1 1 \ lim |----- - ------| x->1+|1 - x 3| \ 1 - x /
-oo
= -100.998533191978
/ 1 1 \ lim |----- - ------| x->1-|1 - x 3| \ 1 - x /
oo
= 100.33185677915
= 100.33185677915