Question

For the function $f(x)$ given below, evaluate $\underset{x}{lim}f(x)$ and $\underset{x}{lim}f(x).$

$f(x)=10co{t}^{-1}(3x2x^2)$

If the function increases without bound, you should enter $.$ If the function decreases without bound, you should enter $-.$ If the function does not approach a finite limit nor $-$ as $x-,$ you should enter $.$