Question

me ajudem sem tem que dar alternativa C

Answer 1

Oi :)

Segue o passo a passo. 

$\frac{- \frac{6}{5} ( \frac{1}{2} + \frac{1}{3} )+ \sqrt{ \frac{49}{4} } }{2+ \frac{1}{2} } \\ \\ \frac{- \frac{6}{5} ( \frac{3+2}{6} )+ \frac{ \sqrt{49}}{ \sqrt{4} } }{ \frac{2}{1} + \frac{1}{2} } \\ \\ \frac{- \frac{6}{5}(\frac{5}{6} )+ \frac{ 7}{2 } }{\frac{2*2+1}{2} } \\ \\ \frac{- \frac{30}{30}+ \frac{ 7}{2 } }{\frac{5}{2} } \\ \\ \frac{-\frac{1}{1}+ \frac{7}{2} }{\frac{5}{2} } \\ \\ \frac{\frac{-2+7}{2} }{\frac{5}{2} } \\ \\ \frac{5}{2}*\frac{2}{5}=1$

Espero que goste :)