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@ 2014-05-28T13:21:46Z

<?php

$x = 4 / (sin(30*pi/180) + sin(40*pi/180) + sin(50*pi/180) + sin(60*pi/180));

    var_dump($x);

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
sin: documentation ( source)

preferences:dark modelive preview

36.01 ms | 402 KiB | 5 Q