[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/session.php on line 580: sizeof(): Parameter must be an array or an object that implements Countable
[phpBB Debug] PHP Warning: in file [ROOT]/phpbb/session.php on line 636: sizeof(): Parameter must be an array or an object that implements Countable
•20070065030
Page 1 of 1

20070065030

Posted: Tue Jan 16, 2018 11:27 am
by ada
$\left(\frac{1}{x}+x\right)\left(\frac{1}{x}+x\right)$