Question

módulos de /-1/7/ E /-1/78/ Resposta?​

Answer 1

$\sf \left|\dfrac{-1}{7}\right|\\\\\\\boldsymbol{\sf Aplicar\:as\:propriedades\:das\:frações\iff\quad \dfrac{-a}{b}=-\dfrac{a}{b}}\\\\\\\sf \dfrac{-1}{7}=-\dfrac{1}{7}\\\\\\\boxed{\sf S_1=\{\left|-\frac{1}{7}\right|\}}$

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$\sf \displaystyle \left|\frac{-1}{78}\right|\\\\\\\boldsymbol{\sf Aplicar\:as\:propriedades\:das\:frações\iff\quad \dfrac{-a}{b}=-\dfrac{a}{b}}\\\\\\\sf \frac{-1}{78}=-\frac{1}{78}\\\\\\\boxed{\sf S_2=\{\left|-\frac{1}{78}\right|\}}$