dev 1 /S1

 devoir surveillé 1 /semestre 1 

https://drive.google.com/file/d/1yEITN386w3Gs8q6FICvB2u35IsknodJR/view?usp=sharing

https://drive.google.com/file/d/1iKRVzcnMdD-yEkgAauwoKqDuBVGBn1t9/view?usp=sharing