/ x -x\ lim \-2 + 2 + 2 / x->0+
Limit(-2 + 2^x + 2^(-x), x, 0)
0
= -8.33672715908373e-32
/ x -x\ lim \-2 + 2 + 2 / x->0-
-8.33672715908373e-32