Limits online Test

1.lim x^2-1/x-1 x->1
0
infinity
2
4
lim sinx/x x->0
0
infinity
1
-1
lim cos x/2 /(x- pi) x->pi
-1/2
0
infinity
-1
lim [sec(x)-1] / x (x->0)
0
1
infinity
-1
lim x^2 - 25 / x-5 x->5
10
5
0
infinity