[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
•20260090010
Page 1 of 1

20260090010

Posted: Fri Feb 09, 2018 7:52 pm
by ada
$\dfrac{-4a^2bc}{2ab^2}$