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Online Web Code Test | Write and Run

PuStudy.Com Start write and Run your Web Code Online Work, PuStudy.Com Provide Online Web Editor, Every Language Code Work in this Editor, Editor Work Like as - Html, Php, Css, Bootstrap, Asp, jQuery Etc.

<?php
echo(acos(0.64) . "
");
echo(acos(-0.4) . "
");
echo(acos(0) . "
");
echo(acos(-1) . "
");
echo(acos(1) . "
");
echo(acos(2));
?>