Question

determine o valor de:

É URGENTE!!!!!!​

Answer 1

Resposta:

Explicação passo-a-passo:

(23-2/9)-¹+(3^10*3^-5)³/9^8

(21/9)-¹ +(3^5)³/(3²)^8

(7/3)-¹ +(3^15)/3^16

3/7+3^(15-16)

3/7+3^-1

3/7+1/3

9+7/21

16/21

Answer 2

Resposta:

Explicação passo-a-passo:

Observe que:

$2,333... = \frac{7}{3}$

Assim:

$=(\frac{7}{3})^{-1}+\frac{(3^{10}.3^{-5})^3}{9^8}\\\\=\frac{3}{7}+\frac{(3^{5})^3}{9^8}\\\\=\frac{3}{7}+\frac{3^{15}}{(3^{2})^8}\\\\=\frac{3}{7}+\frac{3^{15}}{3^{16}}\\\\=\frac{3}{7}+\frac{1}{3}}\\\\=\frac{3*3+7*1}{3*7}\\\\=\frac{16}{21}$