•20050130160

[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
•20050130160

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20050130160

Posted: Fri Sep 22, 2017 11:18 am

by ada

$4\times{\left({\frac{u^{-2}}{u^{-2}}}\right)}^8\times 2u^5\div u^{-3}$