Question

Qual o valor da expressão (5^-1)÷(3^-7.3^5)+(5/2)^-2?​

Answer 1

Resposta:

$(5^{-1} ):(3^{-7} \times3^{5} )+(\frac{5}{2} )^{-2}$

$= \frac{1}{5} :3^{-2} +1^{-2}$

$=\frac{1}{5} \times3^{2} +1$

$=\frac{1}{5} \times9+1$

$=\frac{9}{5} +1$

$=\frac{14}{5}$

$\boxed{\boxed{\boxed{\boxed{RESPOSTA:\frac{14}{5} }}}}$