Question

Ofer 55 de puncte si cororana.
Calculati:
$( - 2) {}^{ - 2} + 0.5 - 0.(6)$
​

Answer 1

Răspuns:

$( - 2 )^{ - 2} = \frac{1}{ (- 2) ^{2} } = \frac{1}{4}$

$0.5 = \frac{1}{2}$

$0.(6) = \frac{6}{9} = \frac{2}{3}$

$\frac{1}{4} + \frac{1}{2} - \frac{2}{3} = \frac{(3 + 6 - 8)}{12} = \frac{1}{12}$