Did i get the wrong math tb??

So maine 11th mai commerce with maths liya hai which means I should have applied maths not core maths,but,today I went to get my books and wahaan bande ne jo maths ka textbook diya hai,it is the same one that mere science wale dost got (photo attached),kya yeh sahi book hai ki mujhe school mai firse puchna padega??