Question

calcule a expressão numérica

Answer 1

Resposta:

$2$

Explicação passo a passo:

$\frac{\frac{2}{5}\left(2-\frac{3}{4}\right)}{\left(\frac{1}{2}\right)^2}$

$=\frac{\frac{2}{5}\left(-\frac{3}{4}+2\right)}{\frac{1}{2^2}}$

$=\frac{\frac{1}{2}}{\frac{1}{2^2}}$

$=\frac{1\cdot \:2^2}{2\cdot \:1}$

$=\frac{2^2}{2}$

$=2$