Question

2) Calcule o valor das expressões a seguir:

Answer 1

Resposta:

Explicação passo-a-passo:

A) $\frac{7^3.7^4}{7^6.7^{-2}} =\frac{7^{3+4}}{7^{6-2}}=\frac{7^7}{7^4}=7^7:7^4=7^{7-4}=7^3$

B)$8^{-6}.8^6(8^4)^{12}=8^{-6}.8^68^{48}=8^{-6+6+48}=8^{48}$

C)$\frac{10^3.10^{-6}}{10^{13}} =\frac{10^{-3}}{10^{13}}=10^{-3}:10^{13}=10^{-3+13}=10^{10}$

D)$2^3.2^{-7}.2^4=2^{3-7+4}=2^0=1$