(1/2)² · (3 8/9 - 2 1/3) = 7/18
1) (1/2)² = 1/2 · 1/2 = 1/4
2) 3 8/9 - 2 1/3 = 3 8/9 - 2 3/9 = 1 5/9 = 14/9
3) 1/4 · 14/9 = (1·7)/(2·9) = 7/18
ответ: 7/18.
Пошаговое объяснение:
(1/2)^2=1/4
3 8/9-2 1/3=1 5/9
1/4*1 5/9=1/4*14/9=7/18
(1/2)² · (3 8/9 - 2 1/3) = 7/18
1) (1/2)² = 1/2 · 1/2 = 1/4
2) 3 8/9 - 2 1/3 = 3 8/9 - 2 3/9 = 1 5/9 = 14/9
3) 1/4 · 14/9 = (1·7)/(2·9) = 7/18
ответ: 7/18.
Пошаговое объяснение:
(1/2)^2=1/4
3 8/9-2 1/3=1 5/9
1/4*1 5/9=1/4*14/9=7/18