JSFiddle - React, Tailwind, and code Playground
HTML
<h1>Min i Max Broj</h1>
<div id="min">
<label for="min_int">Minimalni uneseni broj: </label>
<span id="min_int"></span>
</div>
<div id="max">
<label for="max_int">Maksimalni uneseni broj: </label>
<span id="max_int"></span>
</div>
<hr/>
<div class="root">
<label for="root_int">Formula 1 [ korijen((max+min)^2)]</label><br/>
<span id="root_int"></span>
</div>
<hr/>
<div class="root2">
<label for="root_int2">Formula 2[ (korijen(max+min))^2]</label><br/>
<span id="root_int2"></span>
</div>
JavaScript
var n=parseInt(prompt("Koliko brojeva želite upisati? ", ""));
var polje=new Array ();
for ( i=1; i<=n ; i++)
{polje[i]=parseFloat(prompt("Upisite "+i+" broj", ""));}
max=polje[1]
for ( i=2; i<=n; i++)
{ if (polje[i]>max)
{max=polje[i];}}
min=polje[1]
for ( i=2; i<=n; i++)
{ if (polje[i]<min)
{min=polje[i];}}
var a=max*min;
var b=max+min;
document.getElementById('min_int').innerHTML = min;
document.getElementById('max_int').innerHTML = max;
document.getElementById('root_int').innerHTML = Math.sqrt(Math.pow(b,2));
document.getElementById('root_int2').innerHTML = Math.pow(Math.sqrt(b),2);