Question

Chung to rang 1/a=1/a+1+1/a*(a+1) voi a thuoc so nguyen , a khac 0, a khac -1

 

 

Answer 1

kho..................lam............................tich,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,minh..........................troi........................ret............................wa.................ung ho minh.................hu....................hu..............hu................hat..............hat....................s

Answer 2

bai thi .....................kho..........................kho..............troi.................thilanh.............................ret..................wa.........................dau................wa......................tich....................ung.....................ho.....................cho............do.................lanh