Untitled

1...

<html>
<head>
 </head>
<body>


    <div id="cel"></div>
    <script>
    var a = prompt("Podaj a");
    var b = prompt("Podaj b");
    a = Number(a);
    b = Number(b);
    var c = a+b;
    document.getElementById("cel").innerHTML=c;

    </script>
</body>
</html>

////


2...

<html>
<head>
 </head>
<body>


    <div id="cel"></div>
    <script>
    var a = prompt("Podaj a");
    var b = prompt("Podaj b");
    a = Number(a);
    b = Number(b);
    var c = a+b;
    var d = a-b;
    var e = a*b;
    document.getElementById("cel").innerHTML=c+"<br> "+d+"<br> "+e;

    </script>
</body>
</html>

//////

3....


<html>
<head>
 </head>
<body>


    <div id="cel"></div>
    <script>
    var x = prompt("Podaj x");
    x = Number(x);
    var y = (Math.sqrt(x*x+7)/4)-x*x+(Math.sin(x)/6);
    document.getElementById("cel").innerHTML=y;

    </script>
</body>
</html>


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4.....

<html>
<head>
 </head>
<body>


    <div id="cel"></div>
    <script>
    var p = prompt("Podaj p");
    p = Number(p);
    var a = Math.sqrt(p);
    document.getElementById("cel").innerHTML=a;

    </script>
</body>
</html>


//////


5....

<html>
<head>
 </head>
<body>


    <div id="cel"></div>
    <script>
    var a = prompt("Podaj a");
    var h = prompt("Podaj h");
    a = Number(a);
    h = Number(h);
    var P = (a*h)/2;
    var O = a+h+Math.sqrt((a*a)+(h*h));
    document.getElementById("cel").innerHTML=P+"<br>"+O;

    </script>
</body>
</html>