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

$f(z)=\frac{2e^{t}3}{4e^{t}2}$

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 DNE.

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