Giải bài tập vi tích phân 2b





  

  



          



        

                                         

                  

       







 















       









   





























































 









 







        



cuu duong than cong com

 



   

  













 





 



 





  











 









 

 





 











 



 

 





    











  





 



 



 





 





















  







 

 







cuu duong than cong com

   











 



 



 

 





 













  

























 



 

 



    



    























 















  



















  







 



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