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  1. What will be the output of the following PHP code?
    <?php
    function Add($n1, $n2)
        {
            $total = $n1 + $n2;
            echo cos($total); 
        }
    Add(10,-10);    
    ?>
    1. 0
    2. 1
    3. Error
    4. Nothing
    5. None of these
Correct Option: B

cos() gives the cos value of the argument. Here the function returns 1.


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