Question

(-2/5)elevado a -2
$( - \frac{2}{4} )2$
​

Answer 1

Resposta: (-2/4)^2=1/2

(-2/5)^2=25/4

Explicação passo-a-passo:

$( \frac{ - 2}{4}) {}^{2} = ( \frac{ - 2}{4}).( \frac{ - 2}{4}) = \frac{ + 4 \div 4}{16 \div 4} = \frac{1}{4}$

(-2/5)^-2=(-5/2).(-5/2)=(-).(-)=+

25/4