/ ___________\ | / 2 | lim atan\\/ -1 + 9*x / x->1/3+
Limit(atan(sqrt(-1 + 9*x^2)), x, 1/3)
/ ___________\ | / 2 | lim atan\\/ -1 + 9*x / x->1/3+
0
= 0.0337720642512259
/ ___________\ | / 2 | lim atan\\/ -1 + 9*x / x->1/3-
0
= (0.0 + 0.0346055654897073j)
= (0.0 + 0.0346055654897073j)