Question

$( - \frac{1}{2} ) {}^{2} + ( - \frac{1}{4} ) {}^{2} - (0.5) {}^{2}$
Resolva a expressão:

respostas:

A:
$\frac{5}{8}$
B:
$\frac{9}{16}$
C:
$\frac{1}{8}$
D
$\frac{1}{16}$
​

Answer 1

( - 1/2 )² + ( - 1/4 )² - (0,5)²

= ( - 1/4 ) + ( - 1/16) - (1/2)²

= - 1/4 - 1/16 - 1/4

mmc(4,16) = 16

= - 4/16 - 1/16 - 4/16

= ( - 4 - 1 - 4 ) / 16

= - 10 / 16

= - 5 / 8 = A)