Question

(2/5) в 3 степені
(1 1/2) в 3 степені
2 1/3 × 3
(2/5 + 1/10)×5
3 1/5×3/5+1 4/5×3/5
8/9× 6 2/7- 3 2/7×8/9
Сроочноо!! Бажано щоб все було розписано даю20 балів​

Answer 1

(2/5) в 3 степені = 2/5 * 2/5 * 2/5 = 8/125

(1 1/2) в 3 степені = (3/2) * (3/2) * (3/2) = 27/8

2 1/3 × 3 = (7/3) * 3 = 7

(2/5 + 1/10)×5 = (4/10 + 1/10) * 5 = (5/10) * 5 = 2.5

3 1/5×3/5+1 4/5×3/5 = (16/5) * (3/5) + (9/5) * (3/5) = 48/25 + 27/25 = 75/25 = 3

8/9× 6 2/7 - 3 2/7×8/9 = (8/9) * (44/7) - (17/7) * (8/9) = 352/63 - 136/63 = 216/63 = 24/7

Отже:

(2/5) в 3 степені = 8/125

(1 1/2) в 3 степені = 27/8

2 1/3 × 3 = 7

(2/5 + 1/10)×5 = 2.5

3 1/5×3/5+1 4/5×3/5 = 3

8/9× 6 2/7 - 3 2/7×8/9 = 24/7