Question

calcule o valor das expressões
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Answer 1

Explicação passo-a-passo:

b)

$\sqrt\frac{49}{64}\cdot(\frac{3}{2} )^1+\frac{1}{4}\\\\\sqrt\frac{7^2}{8^2}\cdot\frac{3}{2} +\frac{1}{4} \\\\\frac{7}{8}\cdot\frac{3}{2} +\frac{1}{4} \\\\\frac{7\cdot3}{8\cdot2} +\frac{1}{4} \\\\\frac{21}{16} +\frac{1}{4} \\\\mmc(16,4)=16\\\\\frac{21+4}{16} \\\\\frac{25}{16}$

c)

$(\frac{3}{9} \cdot\frac{5}{2} )+\sqrt\frac{36}{4} \\\\\frac{3\cdot5}{9\cdot2} +\sqrt9\\\\\frac{15}{18}+3 \\\\\frac{15+54}{18} \\\\\frac{69}{18} =\frac{23}{6}$