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<!DOCTYPE html> <html> <body> <?php echo(sqrt(0) . "<br>"); echo(sqrt(1) . "<br>"); echo(sqrt(9) . "<br>"); echo(sqrt(0.64) . "<br>"); echo(sqrt(-9)); ?> </body> <!-- Mirrored from www.w3schools.com/php/phptryit.asp?filename=tryphp_func_math_sqrt by HTTrack Website Copier/3.x [XR&CO'2014], Mon, 27 Jan 2020 02:51:03 GMT --> </html>
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