Question

A) (-5)^2 -4^2 + (-1/2)^0 : 3^3 +1 =

B)(-2)^2 -(-1/2)^2 : (+3)^2 + (-1/6)^2 =

Answer 1

Resposta:

a) $\frac{4}{5}$

b) $\frac{27}{65}$

Explicação passo-a-passo:

A ) $\frac{(-5)^2 -4^2 + (-1/2)^0}{3^3 +1} =$

$\frac{25-16-1}{9+1}$

$=\frac{8}{10}=\frac{4}{5}$

B) $\frac{(-2)^2 -(-1/2)^2}{(+3)^2 + (-1/6)^2} =$

$\frac{4-\frac{1}{4}}{9+\frac{1}{36} }$

$\frac{\frac{16-1}{4} }{\frac{324+1}{36} }$

$\frac{\frac{15}{4} }{\frac{325}{36} }$

$\frac{15}{4} *\frac{36}{325}$

simplificando

$4/4=1\\36/4=9\\15/5=3\\325/5=65$

$\frac{3}{1} *\frac{9}{65}=$

$\frac{27}{65}$