Question

Calcule o valor numérico das expressões algébricas​

Answer 1

Resposta:

Explicação passo-a-passo:

$\frac{3.( \frac{3}{4})^{2}-2.(\frac{3}{4} ) }{5.(\frac{3}{4})-1 } \\\\\frac{3.\frac{9}{12}-\frac{3}{2} }{\frac{15}{4}-1 } \\\frac{\frac{3}{16} }{\frac{11}{4} } \\\frac{3}{16} .\frac{4}{11} =\frac{3}{44}$

$=\frac{\frac{\sqrt{1} }{\sqrt{4} }+(\frac{1}{4}) ^{2} }{\sqrt{\frac{1}{4} } } \\=\frac{\frac{1}{2}+\frac{1}{16} }{\frac{1}{2} } \\=\frac{\frac{9}{16} }{\frac{1}{2} } \\\\=\frac{9.2}{16.1} \\=\frac{9}{8}$