Question

O valor da expressão numérica (3/2-1)^2 : (2+1/4)- (-1)^3-(-1)^3-(-1)^0 é:
A) 1/9
B)10/9
C)13/9
D)17/9
E)19/9

Answer 1

$( \frac{3}{2} - 1)^{2} \div (2 + \frac{1}{4}) - ( - 1)^{3} - ( - 1)^{3} - ( - 1)^{0} \\ ( \frac{3 - 2}{2})^{2} \div ( \frac{8 + 1}{4}) - ( - 1) - ( - 1) - 1 \\ ( \frac{1}{2})^{2} \div ( \frac{9}{4}) + 1 + 1 - 1 \\ (\frac{1}{4} \div \frac{9}{4}) + 2 - 1 \\ ( \frac{1}{4} \times \frac{4}{9}) + 1 \\ \frac{4}{36} + 1 \\ \frac{1}{9} + 1 \\ \frac{1 + 9}{9} \\ \frac{10}{9} \\ \\ resposta \: = \: letra \: b$