Question

Найдите значение выражения

Answer 1

3(1/9)-(9(1/9)²-1)/(3(1/9))=1/3

1. 9(1/9)²-1=1²-1=0
2. 0/3(1/9)=0
3. 3(1/9)=1/3
4. 1/3-0=1/3