Question

How do you find the limit of `1/(x^3 +4)` as x approaches infinity?

Answer 1

`lim_"x->oo" 1/(x^3+4) = 0`

Explanation:

`lim_"x->oo" 1/(x^3+4) = lim_"x->oo" (1/x^3)/(1+4/x^3)`

`=0/(1+0) = 0`