Question

calcule o valor das expressões ​

Answer 1

Resposta:

a) $\frac{63}{4}$
b) $-\frac{7}{20}$
c) $\frac{2}{5}$
d) $-\frac{3}{5}$
e) $-\frac{119}{18}$
f) $\frac{23}{4}$