Question

qual o valor da expressao?​

Answer 1

Resposta:

A resposta é a C) 551/25

Passo a Passo :

$= (\frac{1}{5} )^{-2} +(\frac{1}{5} )^{2}+\sqrt[3]{-27} \\\\= (5^2) +(\frac{1}{5^{2}} )+(-3)\\\\= (25) +(\frac{1}{5^{2}} )-3\\\\= (25) -3+(\frac{1}{5^{2}} )\\\\= 22+(\frac{1}{5^{2}} )\\\\= 22+(\frac{1}{25} )\\= \frac{22*25}{25} +\frac{1}{25} \\= 22*25+1/25 \\ = 551/25$