计算y=x2 ,x=0,x=2以及x轴所围图形绕x的面积
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![计算y=x2 ,x=0,x=2以及x轴所围图形绕x的面积](/uploads/image/f/7216888-40-8.jpg?t=%E8%AE%A1%E7%AE%97y%3Dx2+%2Cx%3D0%2Cx%3D2%E4%BB%A5%E5%8F%8Ax%E8%BD%B4%E6%89%80%E5%9B%B4%E5%9B%BE%E5%BD%A2%E7%BB%95x%E7%9A%84%E9%9D%A2%E7%A7%AF)
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