/ 3 3 \ lim |1 - -- + --| x->-7+| 4 6| \ x x /
Limit(1 - 3/x^4 + 3/x^6, x, -7)
/ 3 3 \ lim |1 - -- + --| x->-7+| 4 6| \ x x /
117505 ------ 117649
= 0.998776020195667
/ 3 3 \ lim |1 - -- + --| x->-7-| 4 6| \ x x /
117505 ------ 117649
= 0.998776020195667
= 0.998776020195667