u趋于正无穷大,根号(1 u^3)开四次方 1 u=
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![u趋于正无穷大,根号(1 u^3)开四次方 1 u=](/uploads/image/f/853174-46-4.jpg?t=u%E8%B6%8B%E4%BA%8E%E6%AD%A3%E6%97%A0%E7%A9%B7%E5%A4%A7%2C%E6%A0%B9%E5%8F%B7%281+u%5E3%29%E5%BC%80%E5%9B%9B%E6%AC%A1%E6%96%B9+1+u%3D)
Fatal error: Uncaught Error: Call to undefined method indexControl::sorandAction() in /mnt/www/zhanqunzuoye/library/core/core.php:84 Stack trace: #0 /mnt/www/zhanqunzuoye/library/core/control.php(45): core::gotoAction(Array) #1 /mnt/www/zhanqunzuoye/view/public/focus/show.php(15): control->action('sorand', 'index') #2 /mnt/www/zhanqunzuoye/library/core/control.php(24): require('/mnt/www/zhanqu...') #3 /mnt/www/zhanqunzuoye/control/public/focusControl.php(63): control->view() #4 /mnt/www/zhanqunzuoye/library/core/core.php(84): focusControl->showAction() #5 /mnt/www/zhanqunzuoye/public/index.php(28): core::gotoAction() #6 {main} thrown in /mnt/www/zhanqunzuoye/library/core/core.php on line 84