1.2.3...9-1.2.3...8-1.2.3...8^2
Giải thích giùm mình nha
tính nhanh 1.2.3....9 - 1.2.3....8 - 1.2.3......8^2
1.2.3....9-1.2.3...8-1.2.3....7.8.8
b) 1.2.3...9-1.2.3...8-1.2.3...7.8^ 2
A = 1.2.3....9 - 1.2.3...8 - 1.2.3.....8.8
1.2.3......9-1.2.3....8-1.2.3.....8.8 mng giúp với ạ
tính: 1.2.3.....9-1.2.3.....8-1.2.3.....82
Tính hợp lý:1.2.3...9-1.2.3...8-1.2.3...82
1.2.3....9-1.2.3....8-1.2.3....7.82