649. Вычислите: 1) 2 2 3 2) 1 + 9 5 8 5 2 3) 3-+ 2 2 »*.*; »²-(0)*; 5) 7 9 3 5 4) 2 4 2 +3=; 6) 9-1 3 2 2​

Пошаговое объяснение:

(2 1/3)² - 4/9 = (7/3)² - 4/9 = 49/9 - 4/9 = 45/9 = 5

(2 1/2)³ + 5/8 = (5/2)² + 5/8 = 25/4 + 5/8 = 50/8 + 5/8 = 55/8 = 6 7/8

3 5/9 + (2/3)² = 3 5/9 + 4/9 = 3 9/9 = 4

(1/2)⁴ + 3 1/4 = 1/16 + 3 4/16 = 3 5/16

7 2/5 - (2/5)² = 7 2/5 - 4/25 = 7 10/25 - 4/25 = 7 6/25

9 - (1 1/3)² = 9 - (4/3)² = 9 - 16/9 = 8 9/9 - 1 7/9 = 7 2/9