Question

Вычислите:
(-1 1/2)²-(-1/2)³:(1/3)²

Answer 1

(-1 1/2)² - (-1/2)³ : (1/3)² = 3 3/8

1) (-1/2)³ = (-1/2) · (-1/2) · (-1/2) = (-1/8)

2) (1/3)² = 1/3 · 1/3 = 1/9

3) (-1/8) : 1/9 = (-1/8) · 9/1 = (-9/8)

4) (-1 1/2)² = (-3/2)² = (-3/2) · (-3/2) = 9/4

5) 9/4 - (-9/8) = 18/8 + 9/8 = 27/8 = 3 3/8

Ответ: 3 целых 3/8.