Question

ДАЮ 90 БАЛЛОВ!!!!!Вычислить: 8^1/3 : 2^-1+ 3^-2 * 81^ 1/4

Answer 1

8^1/3 = $\sqrt[3]{8}$ = 2

2^-1 = 1/2

3^-2 = $\frac{1}{3^2} =\frac{1}{9}$

81^ 1/4 = $\sqrt[4]{81} = 3$

2 : 1/2 + 1/9•3 = 4 +1/3 = $4\frac{1}{3}$

Answer 2

Ответ:

Пошаговое объяснение:

1) 8^⅓ : 2-¹ = (2³)^⅓ : 1/2 = 2^3/3 : 1/2 = 2¹ : 1/2 = 2 * 2/1 = 4/1 = 4

2) 3-² * 81^¼ = 1/(3²) * (3⁴)^¼ =

1/9 * 3^4/4 = 1/9 * 3¹ = 1/9 * 3 = 3/9 = 1/3

3) 4 + 1/3 = 4. 1/3